diff --git a/package-lock.json b/package-lock.json
index c362b4c..be91ba3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -212,7 +212,6 @@
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-      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-      "dev": true
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
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-      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
-      "dev": true
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
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-      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768=",
-      "dev": true
+      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768="
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-      "integrity": "sha1-7/UuN1gknTO+QCuLuOVkuytdQDE=",
-      "dev": true
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-      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
-      "dev": true
+      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY="
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-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
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@@ -735,8 +728,7 @@
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-      "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak=",
-      "dev": true
+      "integrity": "sha1-5tXqjF2tABMEpwsiY4RH9pyy+Ak="
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@@ -799,7 +791,6 @@
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-      "dev": true,
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@@ -1049,7 +1040,6 @@
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-      "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4=",
-      "dev": true
+      "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4="
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-      "integrity": "sha1-uI+UqCzzi4eR1YBG6kAprYjKmdE=",
-      "dev": true
+      "integrity": "sha1-uI+UqCzzi4eR1YBG6kAprYjKmdE="
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-      "dev": true
+      "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg=="
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-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
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-          "resolved": "http://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
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-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
-      "dev": true
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
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-      "integrity": "sha1-QGXiATz5+5Ft39gu+1Bq1MZ2kGI=",
-      "dev": true
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@@ -2124,14 +2107,12 @@
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-          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
-          "dev": true
+          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
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@@ -2141,9 +2122,8 @@
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-          "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
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@@ -2265,7 +2245,7 @@
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-          "resolved": "http://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
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@@ -2302,7 +2282,7 @@
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-          "resolved": "http://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
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@@ -2450,8 +2430,7 @@
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-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
-      "dev": true
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
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@@ -2558,13 +2537,13 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
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           "dev": true
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-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
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@@ -2748,7 +2727,7 @@
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-          "resolved": "http://registry.npmjs.org/qs/-/qs-0.4.2.tgz",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-0.4.2.tgz",
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@@ -2804,13 +2783,13 @@
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
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           "dev": true
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-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
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@@ -2953,7 +2931,7 @@
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+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
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@@ -3169,7 +3146,8 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3190,12 +3168,14 @@
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           "version": "1.0.0",
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+          "dev": true,
+          "optional": true
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           "version": "1.1.11",
           "bundled": true,
           "dev": true,
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@@ -3210,17 +3190,20 @@
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           "version": "1.1.0",
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+          "optional": true
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           "version": "0.0.1",
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+          "dev": true,
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           "version": "1.1.0",
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@@ -3337,7 +3320,8 @@
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           "version": "2.0.3",
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3349,6 +3333,7 @@
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+          "optional": true,
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@@ -3363,6 +3348,7 @@
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+          "optional": true,
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@@ -3370,12 +3356,14 @@
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           "version": "0.0.8",
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -3394,6 +3382,7 @@
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@@ -3474,7 +3463,8 @@
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           "version": "1.0.1",
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+          "dev": true,
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@@ -3486,6 +3476,7 @@
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           "dev": true,
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@@ -3571,7 +3562,8 @@
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@@ -3607,6 +3599,7 @@
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@@ -3626,6 +3619,7 @@
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@@ -3669,12 +3663,14 @@
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           "version": "1.0.2",
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+          "dev": true,
+          "optional": true
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           "version": "3.0.2",
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-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
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-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
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-      "dev": true,
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@@ -4552,7 +4547,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz",
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@@ -4564,13 +4559,13 @@
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-          "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
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-          "resolved": "http://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
+          "resolved": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
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@@ -4658,7 +4653,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
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@@ -4670,13 +4665,13 @@
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-          "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
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-          "resolved": "http://registry.npmjs.org/through2/-/through2-1.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/through2/-/through2-1.1.1.tgz",
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@@ -4686,6 +4681,16 @@
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+    "gulp-css-unit": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/gulp-css-unit/-/gulp-css-unit-1.2.2.tgz",
+      "integrity": "sha1-9N4YrHgNNcaGBQFCCgd8qrKWEHY=",
+      "requires": {
+        "gulp-util": "^3.0.7",
+        "lodash.floor": "^4.0.2",
+        "through2": "^2.0.1"
+      }
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     },
     "y18n": {
       "version": "3.2.1",
@@ -14880,7 +14887,7 @@
     },
     "yargs": {
       "version": "6.4.0",
-      "resolved": "http://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
       "integrity": "sha1-gW4ahm1VmMzzTlWW3c4i2S2kkNQ=",
       "dev": true,
       "requires": {
@@ -14916,7 +14923,7 @@
     },
     "yargs-parser": {
       "version": "4.2.1",
-      "resolved": "http://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
       "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
       "dev": true,
       "requires": {
diff --git a/yarn.lock b/yarn.lock
index 1692b53..1d2e53e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -493,11 +493,11 @@ async@1.5.2, async@^1.2.1:
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
 async@^2.4.1, async@^2.5.0:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
-  integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
+  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
   dependencies:
-    lodash "^4.17.10"
+    lodash "^4.17.14"
 
 async@~0.9.0:
   version "0.9.2"
@@ -1255,10 +1255,10 @@ commander@^2.2.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
-commander@~2.17.1:
-  version "2.17.1"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
-  integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
+commander@~2.20.3:
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
+  integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
 
 component-bind@1.0.0:
   version "1.0.0"
@@ -3482,9 +3482,9 @@ handlebars-layouts@~1.1.0:
   integrity sha1-JhK+Wu2PICaXN8cxHaFcnC11+7w=
 
 handlebars@~4.0.5:
-  version "4.0.12"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.12.tgz#2c15c8a96d46da5e266700518ba8cb8d919d5bc5"
-  integrity sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==
+  version "4.0.14"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.14.tgz#88de711eb693a5b783ae06065f9b91b0dd373a71"
+  integrity sha512-E7tDoyAA8ilZIV3xDJgl18sX3M8xB9/fMw8+mfW4msLW8jlX97bAnWgT3pmaNXuvzIEgSBMnAHfuXsB2hdzfow==
   dependencies:
     async "^2.5.0"
     optimist "^0.6.1"
@@ -4997,11 +4997,16 @@ lodash@^3.10.1:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
   integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
 
-lodash@^4.0.0, lodash@^4.14.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.3.0, lodash@~4.17.10:
+lodash@^4.0.0, lodash@^4.14.0, lodash@^4.17.4, lodash@^4.3.0, lodash@~4.17.10:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
+lodash@^4.17.14:
+  version "4.17.15"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
+  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+
 lodash@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-1.0.2.tgz#8f57560c83b59fc270bd3d561b690043430e2551"
@@ -8237,11 +8242,11 @@ uglify-js@^2.6.0, uglify-js@^2.6.1, uglify-js@^2.7.0, uglify-js@^2.8.22:
     uglify-to-browserify "~1.0.0"
 
 uglify-js@^3.1.4:
-  version "3.4.9"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
-  integrity sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==
+  version "3.7.3"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.7.3.tgz#f918fce9182f466d5140f24bb0ff35c2d32dcc6a"
+  integrity sha512-7tINm46/3puUA4hCkKYo4Xdts+JDaVC9ZPRcG8Xw9R4nhO/gZgUM3TENq8IF4Vatk8qCig4MzP/c8G4u2BkVQg==
   dependencies:
-    commander "~2.17.1"
+    commander "~2.20.3"
     source-map "~0.6.1"
 
 uglify-to-browserify@~1.0.0: