diff --git a/package-lock.json b/package-lock.json
index f83c0af..9e040d9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "silica",
-  "version": "0.60.0-alpha",
+  "version": "0.52.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -325,7 +325,8 @@
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               "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-              "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+              "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+              "optional": true
             },
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               "version": "1.1.1",
@@ -376,7 +377,8 @@
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               "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-0.4.2.tgz",
-              "integrity": "sha1-yz8+PHMtwPAe5wtAPzAuYddwmDg="
+              "integrity": "sha1-yz8+PHMtwPAe5wtAPzAuYddwmDg=",
+              "optional": true
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@@ -391,6 +393,7 @@
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               "resolved": "https://registry.npmjs.org/block-stream/-/block-stream-0.0.9.tgz",
               "integrity": "sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=",
+              "optional": true,
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               }
@@ -399,6 +402,7 @@
               "version": "2.10.1",
               "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
               "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
+              "optional": true,
               "requires": {
                 "hoek": "2.x.x"
               }
@@ -407,6 +411,7 @@
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               "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.7.tgz",
               "integrity": "sha1-Pv/DxQ4ABTH7cg6v+A8K6O8jz1k=",
+              "optional": true,
               "requires": {
                 "balanced-match": "^0.4.1",
                 "concat-map": "0.0.1"
@@ -415,7 +420,8 @@
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               "resolved": "https://registry.npmjs.org/buffer-shims/-/buffer-shims-1.0.0.tgz",
-              "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E="
+              "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E=",
+              "optional": true
             },
             "caseless": {
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@@ -432,12 +438,14 @@
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               "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
-              "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
+              "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
+              "optional": true
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               "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
               "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
+              "optional": true,
               "requires": {
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@@ -445,22 +453,26 @@
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               "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-              "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+              "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+              "optional": true
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               "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
-              "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
+              "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+              "optional": true
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               "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-              "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
+              "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+              "optional": true
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               "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
               "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
+              "optional": true,
               "requires": {
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@@ -500,7 +512,8 @@
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               "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-              "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
+              "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
+              "optional": true
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@@ -532,7 +545,8 @@
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-              "integrity": "sha1-4QgOBljjALBilJkMxw4VAiNf1VA="
+              "integrity": "sha1-4QgOBljjALBilJkMxw4VAiNf1VA=",
+              "optional": true
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@@ -554,12 +568,14 @@
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-              "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+              "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+              "optional": true
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               "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
+              "optional": true,
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@@ -615,6 +631,7 @@
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+              "optional": true,
               "requires": {
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@@ -627,7 +644,8 @@
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-              "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg="
+              "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=",
+              "optional": true
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@@ -655,6 +673,7 @@
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               "resolved": "https://registry.npmjs.org/hawk/-/hawk-3.1.3.tgz",
               "integrity": "sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=",
+              "optional": true,
               "requires": {
                 "boom": "2.x.x",
                 "cryptiles": "2.x.x",
@@ -665,7 +684,8 @@
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               "resolved": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz",
-              "integrity": "sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0="
+              "integrity": "sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=",
+              "optional": true
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@@ -682,6 +702,7 @@
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               "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
               "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+              "optional": true,
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@@ -690,7 +711,8 @@
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               "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-              "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+              "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
+              "optional": true
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@@ -702,6 +724,7 @@
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               "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+              "optional": true,
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@@ -715,7 +738,8 @@
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-              "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
+              "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
+              "optional": true
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@@ -788,12 +812,14 @@
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-              "integrity": "sha1-gg9XIpa70g7CXtVeW13oaeVDbrE="
+              "integrity": "sha1-gg9XIpa70g7CXtVeW13oaeVDbrE=",
+              "optional": true
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               "integrity": "sha1-pOv1BkCUVpI3uM9wBGd20J/JKu0=",
+              "optional": true,
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@@ -802,6 +828,7 @@
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+              "optional": true,
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@@ -809,12 +836,14 @@
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-              "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+              "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+              "optional": true
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               "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
               "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+              "optional": true,
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@@ -869,7 +898,8 @@
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-              "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0="
+              "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
+              "optional": true
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@@ -887,6 +917,7 @@
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               "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+              "optional": true,
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@@ -916,7 +947,8 @@
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-              "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
+              "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+              "optional": true
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@@ -927,7 +959,8 @@
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-              "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
+              "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=",
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@@ -1009,6 +1043,7 @@
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+              "optional": true,
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-              "integrity": "sha1-0mPKVGls2KMGtcplUekt5XkY++c="
+              "integrity": "sha1-0mPKVGls2KMGtcplUekt5XkY++c=",
+              "optional": true
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               "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=",
+              "optional": true,
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               "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+              "optional": true,
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@@ -1083,6 +1121,7 @@
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               "integrity": "sha1-YuIA8DmVWmgQ2N8KM//A8BNmLZg=",
+              "optional": true,
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               "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
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@@ -1166,7 +1207,8 @@
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+              "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
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-              "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+              "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
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@@ -1235,9 +1278,9 @@
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@@ -1276,9 +1319,9 @@
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