diff --git a/package.json b/package.json
index aec9bb4..4581282 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "browserify": "~2",
     "copyfiles": "^1.0.0",
     "expect.js": "~0.2",
-    "express": "~3",
+    "express": "~4",
     "file": "~0.2",
     "git-validate": "^2.1.4",
     "husky": "^0.14.3",
diff --git a/yarn.lock b/yarn.lock
index 65c98a9..fe68d36 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -365,19 +365,12 @@ abbrev@1, abbrev@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
-accepts@~1.2.12, accepts@~1.2.13:
-  version "1.2.13"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.2.13.tgz#e5f1f3928c6d95fd96558c36ec3d9d0de4a6ecea"
-  dependencies:
-    mime-types "~2.1.6"
-    negotiator "0.5.3"
-
-accepts@~1.3.0, accepts@~1.3.4:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
+accepts@~1.3.4, accepts@~1.3.8:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.8.tgz#0bf0be125b67014adcb0b0921e62db7bffe16b2e"
   dependencies:
-    mime-types "~2.1.18"
-    negotiator "0.6.1"
+    mime-types "~2.1.34"
+    negotiator "0.6.3"
 
 acorn-jsx@^3.0.0:
   version "3.0.1"
@@ -575,6 +568,10 @@ array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
 
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+
 array-ify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
@@ -1169,10 +1166,6 @@ base64-js@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-0.0.8.tgz#1101e9544f4a76b1bc3b26d452ca96d7a35e7978"
 
-base64-url@1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/base64-url/-/base64-url-1.2.1.tgz#199fd661702a0e7b7dcae6e0698bb089c52f6d78"
-
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
@@ -1185,24 +1178,12 @@ base@^0.11.1:
     mixin-deep "^1.2.0"
     pascalcase "^0.1.1"
 
-basic-auth-connect@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/basic-auth-connect/-/basic-auth-connect-1.0.0.tgz#fdb0b43962ca7b40456a7c2bb48fe173da2d2122"
-
-basic-auth@~1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-1.0.4.tgz#030935b01de7c9b94a824b29f3fccb750d3a5290"
-
 basic-auth@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.0.tgz#015db3f353e02e56377755f962742e8981e7bbba"
   dependencies:
     safe-buffer "5.1.1"
 
-batch@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/batch/-/batch-0.5.3.tgz#3f3414f380321743bfc1042f9a83ff1d5824d464"
-
 batch@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
@@ -1260,20 +1241,20 @@ bluebird@~2.9.34:
   version "2.9.34"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-2.9.34.tgz#2f7b4ec80216328a9fddebdf69c8d4942feff7d8"
 
-body-parser@~1.13.3:
-  version "1.13.3"
-  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.13.3.tgz#c08cf330c3358e151016a05746f13f029c97fa97"
+body-parser@1.19.2:
+  version "1.19.2"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.2.tgz#4714ccd9c157d44797b8b5607d72c0b89952f26e"
   dependencies:
-    bytes "2.1.0"
-    content-type "~1.0.1"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    http-errors "~1.3.1"
-    iconv-lite "0.4.11"
+    bytes "3.1.2"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
     on-finished "~2.3.0"
-    qs "4.0.0"
-    raw-body "~2.1.2"
-    type-is "~1.6.6"
+    qs "6.9.7"
+    raw-body "2.4.3"
+    type-is "~1.6.18"
 
 bops@0.0.6:
   version "0.0.6"
@@ -1420,13 +1401,9 @@ byte-size@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/byte-size/-/byte-size-4.0.3.tgz#b7c095efc68eadf82985fccd9a2df43a74fa2ccd"
 
-bytes@2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.1.0.tgz#ac93c410e2ffc9cc7cf4b464b38289067f5e47b4"
-
-bytes@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.4.0.tgz#7d97196f9d5baf7f6935e25985549edd2a6c2339"
+bytes@3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.2.tgz#8b0beeb98605adf1b128fa4386403c009e0221a5"
 
 cacache@^10.0.4:
   version "10.0.4"
@@ -1799,10 +1776,6 @@ commander@2.15.1:
   version "2.15.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
 
-commander@2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.6.0.tgz#9df7e52fb2a0cb0fb89058ee80c3104225f37e1d"
-
 commander@^2.14.1, commander@^2.3.0, commander@^2.9.0:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
@@ -1826,23 +1799,6 @@ component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
-compressible@~2.0.5:
-  version "2.0.14"
-  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.14.tgz#326c5f507fbb055f54116782b969a81b67a29da7"
-  dependencies:
-    mime-db ">= 1.34.0 < 2"
-
-compression@~1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/compression/-/compression-1.5.2.tgz#b03b8d86e6f8ad29683cba8df91ddc6ffc77b395"
-  dependencies:
-    accepts "~1.2.12"
-    bytes "2.1.0"
-    compressible "~2.0.5"
-    debug "~2.2.0"
-    on-headers "~1.0.0"
-    vary "~1.0.1"
-
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -1880,51 +1836,6 @@ configstore@^3.0.0:
     write-file-atomic "^2.0.0"
     xdg-basedir "^3.0.0"
 
-connect-timeout@~1.6.2:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/connect-timeout/-/connect-timeout-1.6.2.tgz#de9a5ec61e33a12b6edaab7b5f062e98c599b88e"
-  dependencies:
-    debug "~2.2.0"
-    http-errors "~1.3.1"
-    ms "0.7.1"
-    on-headers "~1.0.0"
-
-connect@2.30.2:
-  version "2.30.2"
-  resolved "https://registry.yarnpkg.com/connect/-/connect-2.30.2.tgz#8da9bcbe8a054d3d318d74dfec903b5c39a1b609"
-  dependencies:
-    basic-auth-connect "1.0.0"
-    body-parser "~1.13.3"
-    bytes "2.1.0"
-    compression "~1.5.2"
-    connect-timeout "~1.6.2"
-    content-type "~1.0.1"
-    cookie "0.1.3"
-    cookie-parser "~1.3.5"
-    cookie-signature "1.0.6"
-    csurf "~1.8.3"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    errorhandler "~1.4.2"
-    express-session "~1.11.3"
-    finalhandler "0.4.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    method-override "~2.3.5"
-    morgan "~1.6.1"
-    multiparty "3.3.2"
-    on-headers "~1.0.0"
-    parseurl "~1.3.0"
-    pause "0.1.0"
-    qs "4.0.0"
-    response-time "~2.3.1"
-    serve-favicon "~2.3.0"
-    serve-index "~1.7.2"
-    serve-static "~1.10.0"
-    type-is "~1.6.6"
-    utils-merge "1.0.0"
-    vhost "~3.0.1"
-
 connect@3.5.x:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/connect/-/connect-3.5.1.tgz#6d30d7a63c7f170857a6b3aa6b363d973dca588e"
@@ -1950,11 +1861,13 @@ contains-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"
 
-content-disposition@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.0.tgz#4284fe6ae0630874639e44e80a418c2934135e9e"
+content-disposition@0.5.4:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.4.tgz#8b82b4efac82512a02bb0b1dcec9d2c5e8eb5bfe"
+  dependencies:
+    safe-buffer "5.2.1"
 
-content-type@~1.0.1:
+content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
 
@@ -2026,20 +1939,13 @@ convert-source-map@~0.3.0:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-0.3.5.tgz#f1d802950af7dd2631a1febe0596550c86ab3190"
 
-cookie-parser@~1.3.5:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/cookie-parser/-/cookie-parser-1.3.5.tgz#9d755570fb5d17890771227a02314d9be7cf8356"
-  dependencies:
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-
 cookie-signature@1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
 
-cookie@0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.1.3.tgz#e734a5c1417fce472d5aef82c381cabb64d1a435"
+cookie@0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.2.tgz#0e41f24de5ecf317947c82fc789e06a884824432"
 
 copy-concurrently@^1.0.0:
   version "1.0.5"
@@ -2099,10 +2005,6 @@ cosmiconfig@^5.0.1, cosmiconfig@^5.0.2:
     js-yaml "^3.9.0"
     parse-json "^4.0.0"
 
-crc@3.3.0:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.3.0.tgz#fa622e1bc388bf257309082d6b65200ce67090ba"
-
 create-error-class@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
@@ -2135,23 +2037,6 @@ crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
 
-csrf@~3.0.0:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/csrf/-/csrf-3.0.6.tgz#b61120ddceeafc91e76ed5313bb5c0b2667b710a"
-  dependencies:
-    rndm "1.2.0"
-    tsscmp "1.0.5"
-    uid-safe "2.1.4"
-
-csurf@~1.8.3:
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/csurf/-/csurf-1.8.3.tgz#23f2a13bf1d8fce1d0c996588394442cba86a56a"
-  dependencies:
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-    csrf "~3.0.0"
-    http-errors "~1.3.1"
-
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -2322,11 +2207,7 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
-depd@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/depd/-/depd-1.0.1.tgz#80aec64c9d6d97e65cc2a9caa93c0aa6abf73aaa"
-
-depd@~1.1.0, depd@~1.1.1, depd@~1.1.2:
+depd@~1.1.1, depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
 
@@ -2338,10 +2219,6 @@ deps-sort@~0.1.1:
     minimist "~0.0.1"
     through "~2.3.4"
 
-destroy@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.3.tgz#b433b4724e71fd8551d9885174851c5fc377e2c9"
-
 destroy@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
@@ -2515,13 +2392,6 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-errorhandler@~1.4.2:
-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/errorhandler/-/errorhandler-1.4.3.tgz#b7b70ed8f359e9db88092f2d20c0f831420ad83f"
-  dependencies:
-    accepts "~1.3.0"
-    escape-html "~1.0.3"
-
 es-abstract@^1.4.3, es-abstract@^1.7.0:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
@@ -2554,10 +2424,6 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
-escape-html@1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.2.tgz#d77d32fa98e38c2f41ae85e9278e0e0e6ba1022c"
-
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -2787,17 +2653,13 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
-etag@~1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/etag/-/etag-1.7.0.tgz#03d30b5f67dd6e632d2945d30d6652731a34d5d8"
-
 etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
 event-stream@latest, event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -2875,45 +2737,40 @@ expect.js@~0.2:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/expect.js/-/expect.js-0.2.0.tgz#1028533d2c1c363f74a6796ff57ec0520ded2be1"
 
-express-session@~1.11.3:
-  version "1.11.3"
-  resolved "https://registry.yarnpkg.com/express-session/-/express-session-1.11.3.tgz#5cc98f3f5ff84ed835f91cbf0aabd0c7107400af"
+express@~4:
+  version "4.17.3"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.17.3.tgz#f6c7302194a4fb54271b73a1fe7a06478c8f85a1"
   dependencies:
-    cookie "0.1.3"
+    accepts "~1.3.8"
+    array-flatten "1.1.1"
+    body-parser "1.19.2"
+    content-disposition "0.5.4"
+    content-type "~1.0.4"
+    cookie "0.4.2"
     cookie-signature "1.0.6"
-    crc "3.3.0"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    on-headers "~1.0.0"
-    parseurl "~1.3.0"
-    uid-safe "~2.0.0"
-    utils-merge "1.0.0"
-
-express@~3:
-  version "3.21.2"
-  resolved "https://registry.yarnpkg.com/express/-/express-3.21.2.tgz#0c2903ee5c54e63d65a96170764703550665a3de"
-  dependencies:
-    basic-auth "~1.0.3"
-    commander "2.6.0"
-    connect "2.30.2"
-    content-disposition "0.5.0"
-    content-type "~1.0.1"
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    escape-html "1.0.2"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    merge-descriptors "1.0.0"
-    methods "~1.1.1"
-    mkdirp "0.5.1"
-    parseurl "~1.3.0"
-    proxy-addr "~1.0.8"
-    range-parser "~1.0.2"
-    send "0.13.0"
-    utils-merge "1.0.0"
-    vary "~1.0.1"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "~1.1.2"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.7"
+    qs "6.9.7"
+    range-parser "~1.2.1"
+    safe-buffer "5.2.1"
+    send "0.17.2"
+    serve-static "1.14.2"
+    setprototypeof "1.2.0"
+    statuses "~1.5.0"
+    type-is "~1.6.18"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
 
 extend-shallow@^2.0.1:
   version "2.0.1"
@@ -3056,15 +2913,6 @@ fill-range@^4.0.0:
     repeat-string "^1.6.1"
     to-regex-range "^2.1.0"
 
-finalhandler@0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-0.4.0.tgz#965a52d9e8d05d2b857548541fb89b53a2497d9b"
-  dependencies:
-    debug "~2.2.0"
-    escape-html "1.0.2"
-    on-finished "~2.3.0"
-    unpipe "~1.0.0"
-
 finalhandler@0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-0.5.1.tgz#2c400d8d4530935bc232549c5fa385ec07de6fcd"
@@ -3075,6 +2923,18 @@ finalhandler@0.5.1:
     statuses "~1.3.1"
     unpipe "~1.0.0"
 
+finalhandler@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    statuses "~1.5.0"
+    unpipe "~1.0.0"
+
 find-npm-prefix@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/find-npm-prefix/-/find-npm-prefix-1.0.2.tgz#8d8ce2c78b3b4b9e66c8acc6a37c231eb841cfdf"
@@ -3155,9 +3015,9 @@ form-data@~2.3.2:
     combined-stream "1.0.6"
     mime-types "^2.1.12"
 
-forwarded@~0.1.0:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
+forwarded@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.2.0.tgz#2269936428aad4c15c7ebe9779a84bf0b2a81811"
 
 fragment-cache@^0.2.1:
   version "0.2.1"
@@ -3165,10 +3025,6 @@ fragment-cache@^0.2.1:
   dependencies:
     map-cache "^0.2.2"
 
-fresh@0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.3.0.tgz#651f838e22424e7566de161d8358caa199f83d4f"
-
 fresh@0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
@@ -3623,12 +3479,15 @@ http-cache-semantics@^3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/http-cache-semantics/-/http-cache-semantics-3.8.1.tgz#39b0e16add9b605bf0a9ef3d9daaf4843b4cacd2"
 
-http-errors@~1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.3.1.tgz#197e22cdebd4198585e8694ef6786197b91ed942"
+http-errors@1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.8.1.tgz#7c3f28577cbc8a207388455dbd62295ed07bd68c"
   dependencies:
-    inherits "~2.0.1"
-    statuses "1"
+    depd "~1.1.2"
+    inherits "2.0.4"
+    setprototypeof "1.2.0"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.1"
 
 http-errors@~1.6.2:
   version "1.6.3"
@@ -3679,13 +3538,11 @@ husky@^0.14.3:
     normalize-path "^1.0.0"
     strip-indent "^2.0.0"
 
-iconv-lite@0.4.11:
-  version "0.4.11"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.11.tgz#2ecb42fd294744922209a2e7c404dac8793d8ade"
-
-iconv-lite@0.4.13:
-  version "0.4.13"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
+iconv-lite@0.4.24:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
 
 iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.23"
@@ -3761,6 +3618,10 @@ inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, i
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
+inherits@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+
 ini@^1.3.4, ini@^1.3.5, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
@@ -3839,9 +3700,9 @@ ip@^1.1.4, ip@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
 
-ipaddr.js@1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.0.5.tgz#5fa78cf301b825c78abc3042d812723049ea23c7"
+ipaddr.js@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.1.tgz#bff38543eeb8984825079ff3a2a8e6cbd46781b3"
 
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
@@ -4893,9 +4754,9 @@ meow@^5.0.0:
     trim-newlines "^2.0.0"
     yargs-parser "^10.0.0"
 
-merge-descriptors@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.0.tgz#2169cf7538e1b0cc87fb88e1502d8474bbf79864"
+merge-descriptors@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
 
 merge2@^1.2.1:
   version "1.2.2"
@@ -4915,16 +4776,7 @@ messageformat@^1.0.2:
     nopt "~3.0.6"
     reserved-words "^0.1.2"
 
-method-override@~2.3.5:
-  version "2.3.10"
-  resolved "https://registry.yarnpkg.com/method-override/-/method-override-2.3.10.tgz#e3daf8d5dee10dd2dce7d4ae88d62bbee77476b4"
-  dependencies:
-    debug "2.6.9"
-    methods "~1.1.2"
-    parseurl "~1.3.2"
-    vary "~1.1.2"
-
-methods@~1.1.1, methods@~1.1.2:
+methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
@@ -4964,28 +4816,38 @@ micromatch@^3.1.10, micromatch@^3.1.8:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
-"mime-db@>= 1.34.0 < 2", mime-db@~1.35.0:
+mime-db@1.52.0:
+  version "1.52.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
+
+mime-db@~1.35.0:
   version "1.35.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.35.0.tgz#0569d657466491283709663ad379a99b90d9ab47"
 
-mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19, mime-types@~2.1.6, mime-types@~2.1.9:
+mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.19:
   version "2.1.19"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.19.tgz#71e464537a7ef81c15f2db9d97e913fc0ff606f0"
   dependencies:
     mime-db "~1.35.0"
 
+mime-types@~2.1.24, mime-types@~2.1.34:
+  version "2.1.35"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.35.tgz#381a871b62a734450660ae3deee44813f70d959a"
+  dependencies:
+    mime-db "1.52.0"
+
 mime@1.2.x:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.2.11.tgz#58203eed86e3a5ef17aed2b7d9ebd47f0a60dd10"
 
-mime@1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.3.4.tgz#115f9e3b6b3daf2959983cb38f149a2d40eb5d53"
-
 mime@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
 
+mime@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+
 mime@^2.0.3:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
@@ -5155,16 +5017,6 @@ morgan@^1.6.1:
     on-finished "~2.3.0"
     on-headers "~1.0.1"
 
-morgan@~1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.6.1.tgz#5fd818398c6819cba28a7cd6664f292fe1c0bbf2"
-  dependencies:
-    basic-auth "~1.0.3"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    on-finished "~2.3.0"
-    on-headers "~1.0.0"
-
 move-concurrently@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
@@ -5180,25 +5032,18 @@ ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
 
-ms@0.7.2:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+
 ms@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
 
-multiparty@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/multiparty/-/multiparty-3.3.2.tgz#35de6804dc19643e5249f3d3e3bdc6c8ce301d3f"
-  dependencies:
-    readable-stream "~1.1.9"
-    stream-counter "~0.2.0"
-
 mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
@@ -5259,13 +5104,9 @@ needle@^2.2.1:
     iconv-lite "^0.4.4"
     sax "^1.2.4"
 
-negotiator@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.5.3.tgz#269d5c476810ec92edbe7b6c2f28316384f9a7e8"
-
-negotiator@0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
+negotiator@0.6.3:
+  version "0.6.3"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.3.tgz#58e323a72fedc0d6f9cd4d31fe49f51479590ccd"
 
 nerf-dart@^1.0.0:
   version "1.0.0"
@@ -5690,7 +5531,7 @@ on-finished@~2.3.0:
   dependencies:
     ee-first "1.1.1"
 
-on-headers@~1.0.0, on-headers@~1.0.1:
+on-headers@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
 
@@ -5702,7 +5543,7 @@ once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0, once@~1.4.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 onetime@^2.0.0:
   version "2.0.1"
@@ -5936,9 +5777,9 @@ parse-url@^1.3.0:
     is-ssh "^1.3.0"
     protocols "^1.4.0"
 
-parseurl@~1.3.0, parseurl@~1.3.1, parseurl@~1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
+parseurl@~1.3.1, parseurl@~1.3.2, parseurl@~1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
 
 pascalcase@^0.1.1:
   version "0.1.1"
@@ -5978,6 +5819,10 @@ path-platform@^0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/path-platform/-/path-platform-0.0.1.tgz#b5585d7c3c463d89aa0060d86611cf1afd617e2a"
 
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+
 path-type@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
@@ -5996,10 +5841,6 @@ pause-stream@0.0.11:
   dependencies:
     through "~2.3"
 
-pause@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/pause/-/pause-0.1.0.tgz#ebc8a4a8619ff0b8a81ac1513c3434ff469fdb74"
-
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -6190,12 +6031,12 @@ protoduck@^5.0.0:
   dependencies:
     genfun "^4.0.1"
 
-proxy-addr@~1.0.8:
-  version "1.0.10"
-  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-1.0.10.tgz#0d40a82f801fc355567d2ecb65efe3f077f121c5"
+proxy-addr@~2.0.7:
+  version "2.0.7"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.7.tgz#f19fe69ceab311eeb94b42e70e8c2070f9ba1025"
   dependencies:
-    forwarded "~0.1.0"
-    ipaddr.js "1.0.5"
+    forwarded "0.2.0"
+    ipaddr.js "1.9.1"
 
 proxy-middleware@latest:
   version "0.15.0"
@@ -6257,9 +6098,9 @@ qrcode-terminal@^0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/qrcode-terminal/-/qrcode-terminal-0.12.0.tgz#bb5b699ef7f9f0505092a3748be4464fe71b5819"
 
-qs@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-4.0.0.tgz#c31d9b74ec27df75e543a86c78728ed8d4623607"
+qs@6.9.7:
+  version "6.9.7"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.9.7.tgz#4610846871485e1e048f44ae3b94033f0e675afe"
 
 qs@~6.5.2:
   version "6.5.2"
@@ -6280,10 +6121,6 @@ qw@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/qw/-/qw-1.0.1.tgz#efbfdc740f9ad054304426acb183412cc8b996d4"
 
-random-bytes@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/random-bytes/-/random-bytes-1.0.0.tgz#4f68a1dc0ae58bd3fb95848c30324db75d64360b"
-
 randomatic@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-3.1.0.tgz#36f2ca708e9e567f5ed2ec01949026d50aa10116"
@@ -6292,20 +6129,17 @@ randomatic@^3.0.0:
     kind-of "^6.0.0"
     math-random "^1.0.1"
 
-range-parser@~1.0.2, range-parser@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.0.3.tgz#6872823535c692e2c2a0103826afd82c2e0ff175"
-
-range-parser@~1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
+range-parser@~1.2.0, range-parser@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
 
-raw-body@~2.1.2:
-  version "2.1.7"
-  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.1.7.tgz#adfeace2e4fb3098058014d08c072dcc59758774"
+raw-body@2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.3.tgz#8f80305d11c2a0a545c2d9d89d7a0286fcead43c"
   dependencies:
-    bytes "2.4.0"
-    iconv-lite "0.4.13"
+    bytes "3.1.2"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
     unpipe "1.0.0"
 
 rc@^1.0.1, rc@^1.1.6, rc@^1.2.7, rc@^1.2.8:
@@ -6442,7 +6276,7 @@ readable-stream@~1.0.31:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@~1.1.10, readable-stream@~1.1.8, readable-stream@~1.1.9:
+readable-stream@~1.1.10:
   version "1.1.14"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
   dependencies:
@@ -6683,13 +6517,6 @@ resolve@~0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-0.3.1.tgz#34c63447c664c70598d1c9b126fc43b2a24310a4"
 
-response-time@~2.3.1:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/response-time/-/response-time-2.3.2.tgz#ffa71bab952d62f7c1d49b7434355fbc68dffc5a"
-  dependencies:
-    depd "~1.1.0"
-    on-headers "~1.0.1"
-
 restore-cursor@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
@@ -6735,10 +6562,6 @@ rimraf@2, rimraf@^2.2.8, rimraf@^2.5.2, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.
   dependencies:
     glob "^7.0.5"
 
-rndm@1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/rndm/-/rndm-1.2.0.tgz#f33fe9cfb52bbfd520aa18323bc65db110a1b76c"
-
 ruglify@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ruglify/-/ruglify-1.0.0.tgz#dc8930e2a9544a274301cc9972574c0d0986b675"
@@ -6788,7 +6611,11 @@ safe-buffer@5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.2.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
+safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
@@ -6860,39 +6687,23 @@ semver@~5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
 
-send@0.13.0:
-  version "0.13.0"
-  resolved "https://registry.yarnpkg.com/send/-/send-0.13.0.tgz#518f921aeb0560aec7dcab2990b14cf6f3cce5de"
-  dependencies:
-    debug "~2.2.0"
-    depd "~1.0.1"
-    destroy "1.0.3"
-    escape-html "1.0.2"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    mime "1.3.4"
-    ms "0.7.1"
-    on-finished "~2.3.0"
-    range-parser "~1.0.2"
-    statuses "~1.2.1"
-
-send@0.13.2:
-  version "0.13.2"
-  resolved "https://registry.yarnpkg.com/send/-/send-0.13.2.tgz#765e7607c8055452bba6f0b052595350986036de"
+send@0.17.2:
+  version "0.17.2"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.17.2.tgz#926622f76601c41808012c8bf1688fe3906f7820"
   dependencies:
-    debug "~2.2.0"
-    depd "~1.1.0"
+    debug "2.6.9"
+    depd "~1.1.2"
     destroy "~1.0.4"
+    encodeurl "~1.0.2"
     escape-html "~1.0.3"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    mime "1.3.4"
-    ms "0.7.1"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "1.8.1"
+    mime "1.6.0"
+    ms "2.1.3"
     on-finished "~2.3.0"
-    range-parser "~1.0.3"
-    statuses "~1.2.1"
+    range-parser "~1.2.1"
+    statuses "~1.5.0"
 
 send@latest:
   version "0.16.2"
@@ -6912,15 +6723,6 @@ send@latest:
     range-parser "~1.2.0"
     statuses "~1.4.0"
 
-serve-favicon@~2.3.0:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/serve-favicon/-/serve-favicon-2.3.2.tgz#dd419e268de012ab72b319d337f2105013f9381f"
-  dependencies:
-    etag "~1.7.0"
-    fresh "0.3.0"
-    ms "0.7.2"
-    parseurl "~1.3.1"
-
 serve-index@^1.7.2:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.9.1.tgz#d3768d69b1e7d82e5ce050fff5b453bea12a9239"
@@ -6933,25 +6735,14 @@ serve-index@^1.7.2:
     mime-types "~2.1.17"
     parseurl "~1.3.2"
 
-serve-index@~1.7.2:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.7.3.tgz#7a057fc6ee28dc63f64566e5fa57b111a86aecd2"
-  dependencies:
-    accepts "~1.2.13"
-    batch "0.5.3"
-    debug "~2.2.0"
-    escape-html "~1.0.3"
-    http-errors "~1.3.1"
-    mime-types "~2.1.9"
-    parseurl "~1.3.1"
-
-serve-static@~1.10.0:
-  version "1.10.3"
-  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.10.3.tgz#ce5a6ecd3101fed5ec09827dac22a9c29bfb0535"
+serve-static@1.14.2:
+  version "1.14.2"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.2.tgz#722d6294b1d62626d41b43a013ece4598d292bfa"
   dependencies:
+    encodeurl "~1.0.2"
     escape-html "~1.0.3"
-    parseurl "~1.3.1"
-    send "0.13.2"
+    parseurl "~1.3.3"
+    send "0.17.2"
 
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
@@ -6983,6 +6774,10 @@ setprototypeof@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.0.tgz#d0bd85536887b6fe7c0d818cb962d9d91c54e656"
 
+setprototypeof@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.2.0.tgz#66c9a24a73f9fc28cbe66b09fed3d33dcaf1b424"
+
 sha@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/sha/-/sha-2.0.1.tgz#6030822fbd2c9823949f8f72ed6411ee5cf25aae"
@@ -7313,14 +7108,10 @@ static-site@^1.3.1:
     swig-extras "0.0.1"
     swig-templates "^2.0.2"
 
-statuses@1, "statuses@>= 1.4.0 < 2":
+"statuses@>= 1.4.0 < 2", "statuses@>= 1.5.0 < 2", statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
 
-statuses@~1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.2.1.tgz#dded45cc18256d51ed40aec142489d5c61026d28"
-
 statuses@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
@@ -7342,12 +7133,6 @@ stream-combiner@~0.0.2, stream-combiner@~0.0.4:
   dependencies:
     duplexer "~0.1.1"
 
-stream-counter@~0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/stream-counter/-/stream-counter-0.2.0.tgz#ded266556319c8b0e222812b9cf3b26fa7d947de"
-  dependencies:
-    readable-stream "~1.1.8"
-
 stream-each@^1.1.0:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/stream-each/-/stream-each-1.2.3.tgz#ebe27a0c389b04fbcc233642952e10731afa9bae"
@@ -7608,6 +7393,10 @@ to-utf8@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/to-utf8/-/to-utf8-0.0.1.tgz#d17aea72ff2fba39b9e43601be7b3ff72e089852"
 
+toidentifier@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.1.tgz#3be34321a88a820ed1bd80dfaa33e479fbb8dd35"
+
 toml@^2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/toml/-/toml-2.3.3.tgz#8d683d729577cb286231dfc7a8affe58d31728fb"
@@ -7643,10 +7432,6 @@ tslib@^1.9.0:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
 
-tsscmp@1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.5.tgz#7dc4a33af71581ab4337da91d85ca5427ebd9a97"
-
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
@@ -7663,12 +7448,12 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-type-is@~1.6.6:
-  version "1.6.16"
-  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
+type-is@~1.6.18:
+  version "1.6.18"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
   dependencies:
     media-typer "0.3.0"
-    mime-types "~2.1.18"
+    mime-types "~2.1.24"
 
 typedarray@^0.0.6:
   version "0.0.6"
@@ -7731,18 +7516,6 @@ uid-number@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
 
-uid-safe@2.1.4:
-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/uid-safe/-/uid-safe-2.1.4.tgz#3ad6f38368c6d4c8c75ec17623fb79aa1d071d81"
-  dependencies:
-    random-bytes "~1.0.0"
-
-uid-safe@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/uid-safe/-/uid-safe-2.0.0.tgz#a7f3c6ca64a1f6a5d04ec0ef3e4c3d5367317137"
-  dependencies:
-    base64-url "1.2.1"
-
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
@@ -7877,6 +7650,10 @@ utils-merge@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.0.tgz#0294fb922bb9375153541c4f7096231f287c8af8"
 
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+
 uuid@^3.0.0, uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
@@ -7898,10 +7675,6 @@ vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
 
-vary@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/vary/-/vary-1.0.1.tgz#99e4981566a286118dfb2b817357df7993376d10"
-
 verror@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
@@ -7910,10 +7683,6 @@ verror@1.10.0:
     core-util-is "1.0.2"
     extsprintf "^1.2.0"
 
-vhost@~3.0.1:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/vhost/-/vhost-3.0.2.tgz#2fb1decd4c466aa88b0f9341af33dc1aff2478d5"
-
 vinyl@~0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-0.2.3.tgz#bca938209582ec5a49ad538a00fa1f125e513252"