diff --git a/package-lock.json b/package-lock.json
index 0dc4b1e..5d43780 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -358,6 +358,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "^3.0.2",
         "longest": "^1.0.1",
@@ -2016,7 +2017,7 @@
       "dependencies": {
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -2029,7 +2030,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -3335,7 +3336,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -4069,7 +4070,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.1.1",
@@ -4089,9 +4091,7 @@
         },
         "asn1": {
           "version": "0.2.3",
-          "bundled": true,
-          "dev": true,
-          "optional": true
+          "bundled": true
         },
         "assert-plus": {
           "version": "0.2.0",
@@ -4120,13 +4120,12 @@
         "balanced-match": {
           "version": "0.4.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "bcrypt-pbkdf": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true,
-          "optional": true,
           "requires": {
             "tweetnacl": "^0.14.3"
           }
@@ -4135,6 +4134,7 @@
           "version": "0.0.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "inherits": "~2.0.0"
           }
@@ -4143,6 +4143,7 @@
           "version": "2.10.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "hoek": "2.x.x"
           }
@@ -4151,6 +4152,7 @@
           "version": "1.1.7",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^0.4.1",
             "concat-map": "0.0.1"
@@ -4184,6 +4186,7 @@
           "version": "1.0.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "~1.0.0"
           }
@@ -4191,7 +4194,8 @@
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
@@ -4209,6 +4213,7 @@
           "version": "2.0.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "boom": "2.x.x"
           }
@@ -4216,8 +4221,6 @@
         "dashdash": {
           "version": "1.14.1",
           "bundled": true,
-          "dev": true,
-          "optional": true,
           "requires": {
             "assert-plus": "^1.0.0"
           },
@@ -4225,7 +4228,6 @@
             "assert-plus": {
               "version": "1.0.0",
               "bundled": true,
-              "dev": true,
               "optional": true
             }
           }
@@ -4266,8 +4268,6 @@
         "ecc-jsbn": {
           "version": "0.1.1",
           "bundled": true,
-          "dev": true,
-          "optional": true,
           "requires": {
             "jsbn": "~0.1.0"
           }
@@ -4281,7 +4281,8 @@
         "extsprintf": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "forever-agent": {
           "version": "0.6.1",
@@ -4303,12 +4304,14 @@
         "fs.realpath": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "fstream": {
           "version": "1.0.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "^4.1.2",
             "inherits": "~2.0.0",
@@ -4346,8 +4349,6 @@
         "getpass": {
           "version": "0.1.7",
           "bundled": true,
-          "dev": true,
-          "optional": true,
           "requires": {
             "assert-plus": "^1.0.0"
           },
@@ -4355,7 +4356,6 @@
             "assert-plus": {
               "version": "1.0.0",
               "bundled": true,
-              "dev": true,
               "optional": true
             }
           }
@@ -4364,6 +4364,7 @@
           "version": "7.1.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "^1.0.0",
             "inflight": "^1.0.4",
@@ -4376,7 +4377,8 @@
         "graceful-fs": {
           "version": "4.1.11",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "har-schema": {
           "version": "1.0.5",
@@ -4404,6 +4406,7 @@
           "version": "3.1.3",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "boom": "2.x.x",
             "cryptiles": "2.x.x",
@@ -4414,7 +4417,8 @@
         "hoek": {
           "version": "2.16.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "http-signature": {
           "version": "1.1.1",
@@ -4431,6 +4435,7 @@
           "version": "1.0.6",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "once": "^1.3.0",
             "wrappy": "1"
@@ -4439,7 +4444,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.4",
@@ -4451,6 +4457,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -4464,7 +4471,8 @@
         "isarray": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "isstream": {
           "version": "0.1.2",
@@ -4475,8 +4483,6 @@
         "jodid25519": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true,
-          "optional": true,
           "requires": {
             "jsbn": "~0.1.0"
           }
@@ -4484,7 +4490,6 @@
         "jsbn": {
           "version": "0.1.1",
           "bundled": true,
-          "dev": true,
           "optional": true
         },
         "json-schema": {
@@ -4537,12 +4542,14 @@
         "mime-db": {
           "version": "1.27.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.27.0"
           }
@@ -4551,6 +4558,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
@@ -4558,12 +4566,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4618,7 +4628,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "oauth-sign": {
           "version": "0.8.2",
@@ -4636,6 +4647,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4665,7 +4677,8 @@
         "path-is-absolute": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "performance-now": {
           "version": "0.2.0",
@@ -4676,7 +4689,8 @@
         "process-nextick-args": {
           "version": "1.0.7",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "punycode": {
           "version": "1.4.1",
@@ -4714,6 +4728,7 @@
           "version": "2.2.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "buffer-shims": "~1.0.0",
             "core-util-is": "~1.0.0",
@@ -4758,6 +4773,7 @@
           "version": "2.6.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "glob": "^7.0.5"
           }
@@ -4765,7 +4781,8 @@
         "safe-buffer": {
           "version": "5.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "semver": {
           "version": "5.3.0",
@@ -4789,39 +4806,16 @@
           "version": "1.0.9",
           "bundled": true,
           "dev": true,
-          "requires": {
-            "hoek": "2.x.x"
-          }
-        },
-        "sshpk": {
-          "version": "1.13.0",
-          "bundled": true,
-          "dev": true,
           "optional": true,
           "requires": {
-            "asn1": "~0.2.3",
-            "assert-plus": "^1.0.0",
-            "bcrypt-pbkdf": "^1.0.0",
-            "dashdash": "^1.12.0",
-            "ecc-jsbn": "~0.1.1",
-            "getpass": "^0.1.1",
-            "jodid25519": "^1.0.0",
-            "jsbn": "~0.1.0",
-            "tweetnacl": "~0.14.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            }
+            "hoek": "2.x.x"
           }
         },
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4832,6 +4826,7 @@
           "version": "1.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.0.1"
           }
@@ -4846,6 +4841,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4860,6 +4856,7 @@
           "version": "2.2.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "block-stream": "*",
             "fstream": "^1.0.2",
@@ -4903,7 +4900,6 @@
         "tweetnacl": {
           "version": "0.14.5",
           "bundled": true,
-          "dev": true,
           "optional": true
         },
         "uid-number": {
@@ -4915,7 +4911,8 @@
         "util-deprecate": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "uuid": {
           "version": "3.0.1",
@@ -4944,7 +4941,8 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -6533,7 +6531,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.3.1",
@@ -6980,13 +6979,13 @@
       "dependencies": {
         "ansi-escapes": {
           "version": "1.4.0",
-          "resolved": "http://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+          "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
           "integrity": "sha1-06ioOzGapneTZisT52HHkRQiMG4=",
           "dev": true
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -7054,7 +7053,7 @@
         },
         "globby": {
           "version": "4.1.0",
-          "resolved": "http://registry.npmjs.org/globby/-/globby-4.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/globby/-/globby-4.1.0.tgz",
           "integrity": "sha1-CA9UVJ7BuCpsYOYx/ILhIR2+lfg=",
           "dev": true,
           "requires": {
@@ -7068,7 +7067,7 @@
         },
         "inquirer": {
           "version": "0.12.0",
-          "resolved": "http://registry.npmjs.org/inquirer/-/inquirer-0.12.0.tgz",
+          "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-0.12.0.tgz",
           "integrity": "sha1-HvK/1jUE3wvHV4X/+MLEHfEvB34=",
           "dev": true,
           "requires": {
@@ -7107,7 +7106,7 @@
         },
         "onetime": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
           "dev": true
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@@ -7167,7 +7166,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -7341,6 +7340,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -7665,7 +7665,8 @@
         "is-buffer": {
           "version": "1.1.6",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-builtin-module": {
           "version": "1.0.0",
@@ -7749,6 +7750,7 @@
           "version": "3.2.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -7795,7 +7797,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",
@@ -8061,7 +8064,8 @@
         "repeat-string": {
           "version": "1.6.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "require-directory": {
           "version": "2.1.1",
@@ -8582,7 +8586,7 @@
       "dependencies": {
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -8610,7 +8614,7 @@
         },
         "onetime": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=",
           "dev": true
         },
@@ -8626,7 +8630,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -9860,9 +9864,9 @@
       "dev": true
     },
     "sshpk": {
-      "version": "1.15.2",
-      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.15.2.tgz",
-      "integrity": "sha512-Ra/OXQtuh0/enyl4ETZAfTaeksa6BXks5ZcjpSUNrjBr0DvrJKX+1fsKDPpT9TBXgHAFsa4510aNVgI8g/+SzA==",
+      "version": "1.16.1",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
+      "integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
       "dev": true,
       "requires": {
         "asn1": "~0.2.3",