diff --git a/yarn.lock b/yarn.lock
index 2b8e4f7f..6bb2c5b2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -251,6 +251,12 @@ async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
+async@^2.6.2:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
+  dependencies:
+    lodash "^4.17.14"
+
 async@~2.1.2:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/async/-/async-2.1.5.tgz#e587c68580994ac67fc56ff86d3ac56bdbe810bc"
@@ -1196,6 +1202,10 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
+colors@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+
 colors@^1.1.0, colors@^1.1.2:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.2.3.tgz#1b152a9c4f6c9f74bc4bb96233ad0b7983b79744"
@@ -1308,6 +1318,10 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+corser@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
+
 create-ecdh@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.1.tgz#44223dfed533193ba5ba54e0df5709b89acf1f82"
@@ -1638,6 +1652,12 @@ debug@^3.1.0, debug@~3.1.0:
   dependencies:
     ms "2.0.0"
 
+debug@^3.1.1:
+  version "3.2.7"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.7.tgz#72580b7e9145fb39b6676f9c5e5fb100b934179a"
+  dependencies:
+    ms "^2.1.1"
+
 debug@~2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
@@ -1822,6 +1842,15 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
+ecstatic@^3.0.0:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-3.3.2.tgz#6d1dd49814d00594682c652adb66076a69d46c48"
+  dependencies:
+    he "^1.1.1"
+    mime "^1.6.0"
+    minimist "^1.1.0"
+    url-join "^2.0.5"
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
@@ -2027,6 +2056,10 @@ eventemitter3@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
 
+eventemitter3@^4.0.0:
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
+
 events@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/events/-/events-2.0.0.tgz#cbbb56bf3ab1ac18d71c43bb32c86255062769f2"
@@ -2436,6 +2469,10 @@ hawk@~6.0.2:
     hoek "4.x.x"
     sntp "2.x.x"
 
+he@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
+
 hipchat-notifier@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/hipchat-notifier/-/hipchat-notifier-1.1.0.tgz#b6d249755437c191082367799d3ba9a0f23b231e"
@@ -2521,6 +2558,27 @@ http-proxy@^1.13.0:
     follow-redirects "^1.0.0"
     requires-port "^1.0.0"
 
+http-proxy@^1.8.1:
+  version "1.18.1"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
+  dependencies:
+    eventemitter3 "^4.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
+
+http-server@^0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/http-server/-/http-server-0.11.1.tgz#2302a56a6ffef7f9abea0147d838a5e9b6b6a79b"
+  dependencies:
+    colors "1.0.3"
+    corser "~2.0.0"
+    ecstatic "^3.0.0"
+    http-proxy "^1.8.1"
+    opener "~1.4.0"
+    optimist "0.6.x"
+    portfinder "^1.0.13"
+    union "~0.4.3"
+
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
@@ -2620,8 +2678,8 @@ inherits@2.0.1:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
 ini@~1.3.0:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.7.tgz#a09363e1911972ea16d7a8851005d84cf09a9a84"
 
 ink-docstrap@^1.3.2:
   version "1.3.2"
@@ -3162,6 +3220,10 @@ lodash@^4.0.0, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.4, l
   version "4.17.10"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
 
+lodash@^4.17.14:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+
 log4js@^2.3.9:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.5.3.tgz#38bb7bde5e9c1c181bd75e8bc128c5cd0409caf1"
@@ -3218,6 +3280,12 @@ ltcdr@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ltcdr/-/ltcdr-2.2.1.tgz#5ab87ad1d4c1dab8e8c08bbf037ee0c1902287cf"
 
+magic-string@^0.22.4:
+  version "0.22.5"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.22.5.tgz#8e9cf5afddf44385c1da5bc2a6a0dbd10b03657e"
+  dependencies:
+    vlq "^0.2.2"
+
 mailcomposer@4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/mailcomposer/-/mailcomposer-4.0.1.tgz#0e1c44b2a07cf740ee17dc149ba009f19cadfeb4"
@@ -3289,7 +3357,7 @@ mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18,
   dependencies:
     mime-db "~1.33.0"
 
-mime@^1.3.4:
+mime@^1.3.4, mime@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
@@ -3319,6 +3387,10 @@ minimist@^1.1.0, minimist@^1.1.1, minimist@^1.2.0, minimist@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+
 minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
@@ -3342,6 +3414,12 @@ mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1:
   dependencies:
     minimist "0.0.8"
 
+mkdirp@^0.5.5:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  dependencies:
+    minimist "^1.2.5"
+
 module-deps@^6.0.0:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/module-deps/-/module-deps-6.0.2.tgz#660217d1602b863ac8d4d16951a3720dd9aa4c80"
@@ -3374,6 +3452,10 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@^2.1.1:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
@@ -3567,7 +3649,11 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-optimist@^0.6.1:
+opener@~1.4.0:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
+
+optimist@0.6.x, optimist@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
   dependencies:
@@ -3749,6 +3835,14 @@ pn@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
 
+portfinder@^1.0.13:
+  version "1.0.28"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.28.tgz#67c4622852bd5374dd1dd900f779f53462fac778"
+  dependencies:
+    async "^2.6.2"
+    debug "^3.1.1"
+    mkdirp "^0.5.5"
+
 postcss@^6.0.14:
   version "6.0.22"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.22.tgz#e23b78314905c3b90cbd61702121e7a78848f2a3"
@@ -3836,6 +3930,10 @@ qs@6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
+qs@~2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
+
 qs@~6.2.0:
   version "6.2.3"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
@@ -4195,6 +4293,12 @@ rollup-plugin-node-resolve@^3.0.0:
     is-module "^1.0.0"
     resolve "^1.1.6"
 
+rollup-plugin-polyfill@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-polyfill/-/rollup-plugin-polyfill-2.0.1.tgz#d514a748c8ff1d424473a8545909f19f69ea8f43"
+  dependencies:
+    magic-string "^0.22.4"
+
 rollup-pluginutils@^1.5.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz#1e156e778f94b7255bfa1b3d0178be8f5c552408"
@@ -4785,10 +4889,20 @@ underscore@~1.8.3:
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
 
+union@~0.4.3:
+  version "0.4.6"
+  resolved "https://registry.yarnpkg.com/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
+  dependencies:
+    qs "~2.3.3"
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
 
+url-join@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
+
 url@~0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
@@ -4833,6 +4947,10 @@ verror@1.10.0:
     core-util-is "1.0.2"
     extsprintf "^1.2.0"
 
+vlq@^0.2.2:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/vlq/-/vlq-0.2.3.tgz#8f3e4328cf63b1540c0d67e1b2778386f8975b26"
+
 vm-browserify@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-1.0.1.tgz#a15d7762c4c48fa6bf9f3309a21340f00ed23063"