diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 5ec6fc9..156c655
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "gulp-clean": "^0.3.2",
     "gulp-mocha": "^3.0.1",
     "gulp-nodemon": "^2.1.0",
-    "gulp-sass": "^2.3.2",
+    "gulp-sass": "^5.0.0",
     "gulp-sourcemaps": "^1.6.0",
     "gulp-util": "^3.0.7",
     "marked": "^0.3.6",
diff --git a/yarn.lock b/yarn.lock
index ba7bbfd..2d69bd9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -59,6 +59,13 @@ amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
 
+ansi-colors@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-1.1.0.tgz#6374b4dd5d4718ff3ce27a671a3b1cad077132a9"
+  integrity sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==
+  dependencies:
+    ansi-wrap "^0.1.0"
+
 ansi-escapes@^1.1.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
@@ -71,6 +78,11 @@ ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
 
+ansi-regex@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.1.tgz#082cb2c89c9fe8659a311a53bd6a4dc5301db304"
+  integrity sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==
+
 ansi-styles@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.1.0.tgz#eaecbf66cd706882760b2f4691582b8f55d7a7de"
@@ -79,6 +91,11 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
+ansi-wrap@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
+  integrity sha512-ZyznvL8k/FZeQHr2T6LzcJ/+vBApDnMNZvfVFy3At0knswWd6rJ3/0Hhmpu8oqa6C92npmozs890sX9Dl6q+Qw==
+
 anymatch@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.0.tgz#a3e52fa39168c825ff57b0248126ce5a8ff95507"
@@ -113,10 +130,20 @@ arr-diff@^2.0.0:
   dependencies:
     arr-flatten "^1.0.1"
 
+arr-diff@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
+  integrity sha512-YVIQ82gZPGBebQV/a8dar4AitzCQs0jjXwMPZllpXMaGjXPYVUawSxQrRsjhjupyVxEvbHgUmIhKVlND+j02kA==
+
 arr-flatten@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.0.1.tgz#e5ffe54d45e19f32f216e91eb99c8ce892bb604b"
 
+arr-union@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+  integrity sha512-sKpyeERZ02v1FeCZT8lrfJq5u6goHCtpTAzPwJYe7c8SPFOboNjNg1vz2L4VTn9T4PQxEx13TbXLmYUcS6Ug7Q==
+
 array-differ@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-differ/-/array-differ-1.0.0.tgz#eff52e3758249d33be402b8bb8e564bb2b5d4031"
@@ -167,6 +194,11 @@ assert-plus@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
 
+assign-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
+  integrity sha512-Q+JC7Whu8HhmTdBph/Tq59IoRtoy6KAm5zzPv00WdujX82lbAL8K7WVjne7vdCsAmbF4AYaDOPyO3k0kl8qIrw==
+
 async-each-series@0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/async-each-series/-/async-each-series-0.1.1.tgz#7617c1917401fd8ca4a28aadce3dbae98afeb432"
@@ -175,10 +207,6 @@ async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
-async-foreach@^0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/async-foreach/-/async-foreach-0.1.3.tgz#36121f845c0578172de419a97dbeb1d16ec34542"
-
 async@0.2.x, async@~0.2.9:
   version "0.2.10"
   resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
@@ -633,13 +661,6 @@ crc@3.4.1:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/crc/-/crc-3.4.1.tgz#65d5830b1a2569557cfb324c0e679998521473ee"
 
-cross-spawn@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-3.0.1.tgz#1256037ecb9f0c5f79e3d6ef135e30770184b982"
-  dependencies:
-    lru-cache "^4.0.1"
-    which "^1.2.9"
-
 cross-spawn@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.0.1.tgz#a3bbb302db2297cbea3c04edf36941f4613aa399"
@@ -1207,6 +1228,14 @@ express@4.13.3:
     utils-merge "1.0.0"
     vary "~1.0.1"
 
+extend-shallow@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
+  integrity sha512-BwY5b5Ql4+qZoefgMj2NUmx+tehVTH/Kf4k1ZEtOHNFcm2wSxMRo992l6X3TIgni2eZVTZ85xMOjF31fwZAj6Q==
+  dependencies:
+    assign-symbols "^1.0.0"
+    is-extendable "^1.0.1"
+
 extend@^3.0.0, extend@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
@@ -1446,12 +1475,6 @@ gaze@^0.5.1:
   dependencies:
     globule "~0.1.0"
 
-gaze@^1.0.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/gaze/-/gaze-1.1.2.tgz#847224677adb8870d679257ed3388fdb61e40105"
-  dependencies:
-    globule "^1.0.0"
-
 generate-function@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
@@ -1544,17 +1567,6 @@ glob@~3.1.21:
     inherits "1"
     minimatch "~0.2.11"
 
-glob@~7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.2"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
 global-modules@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-0.2.3.tgz#ea5a3bed42c6d6ce995a4f8a1269b5dae223828d"
@@ -1586,14 +1598,6 @@ globby@^5.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-globule@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/globule/-/globule-1.1.0.tgz#c49352e4dc183d85893ee825385eb994bb6df45f"
-  dependencies:
-    glob "~7.1.1"
-    lodash "~4.16.4"
-    minimatch "~3.0.2"
-
 globule@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/globule/-/globule-0.1.0.tgz#d9c8edde1da79d125a151b79533b978676346ae5"
@@ -1687,15 +1691,17 @@ gulp-nodemon@^2.1.0:
     gulp "^3.9.1"
     nodemon "^1.10.2"
 
-gulp-sass@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/gulp-sass/-/gulp-sass-2.3.2.tgz#82b7ab90fe902cdc34c04f180d92f2c34902dd52"
+gulp-sass@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/gulp-sass/-/gulp-sass-5.1.0.tgz#bb3d9094f39a260f62a8d0a6797b95ab826f9663"
+  integrity sha512-7VT0uaF+VZCmkNBglfe1b34bxn/AfcssquLKVDYnCDJ3xNBaW7cUuI3p3BQmoKcoKFrs9jdzUxyb+u+NGfL4OQ==
   dependencies:
-    gulp-util "^3.0"
-    lodash.clonedeep "^4.3.2"
-    node-sass "^3.4.2"
-    through2 "^2.0.0"
-    vinyl-sourcemaps-apply "^0.2.0"
+    lodash.clonedeep "^4.5.0"
+    picocolors "^1.0.0"
+    plugin-error "^1.0.1"
+    replace-ext "^2.0.0"
+    strip-ansi "^6.0.1"
+    vinyl-sourcemaps-apply "^0.2.1"
 
 gulp-sourcemaps@^1.6.0:
   version "1.11.0"
@@ -1712,7 +1718,7 @@ gulp-sourcemaps@^1.6.0:
     through2 "2.X"
     vinyl "1.X"
 
-gulp-util@*, gulp-util@^3.0, gulp-util@^3.0.0, gulp-util@^3.0.7:
+gulp-util@*, gulp-util@^3.0.0, gulp-util@^3.0.7:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-3.0.8.tgz#0054e1e744502e27c04c187c3ecc505dd54bbb4f"
   dependencies:
@@ -1919,10 +1925,6 @@ imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
 
-in-publish@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/in-publish/-/in-publish-2.0.0.tgz#e20ff5e3a2afc2690320b6dc552682a9c7fadf51"
-
 indent-string@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
@@ -2031,6 +2033,13 @@ is-extendable@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
 
+is-extendable@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-1.0.1.tgz#a7470f9e426733d81bd81e1155264e3a3507cab4"
+  integrity sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==
+  dependencies:
+    is-plain-object "^2.0.4"
+
 is-extglob@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
@@ -2099,6 +2108,13 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
+is-plain-object@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
+  integrity sha512-h5PpgXkWitc38BBMYawTYMWJHFZJVnBquFE57xFpjB8pJFiF6gZ+bU+WyI/yqXiFR5mdLsgYNaPe8uao6Uv9Og==
+  dependencies:
+    isobject "^3.0.1"
+
 is-posix-bracket@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
@@ -2167,6 +2183,11 @@ isobject@^2.0.0:
   dependencies:
     isarray "1.0.0"
 
+isobject@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
+  integrity sha512-WhB9zCku7EGTj/HQQRz5aUQEUeoQZH2bWcltRErOpymJ4boYE6wL9Tbr23krRPSZ+C5zqNSrSw+Cc7sZZ4b7vg==
+
 isstream@0.1.x, isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
@@ -2417,17 +2438,14 @@ lodash.assign@^3.0.0:
     lodash._createassigner "^3.0.0"
     lodash.keys "^3.0.0"
 
-lodash.assign@^4.0.3, lodash.assign@^4.0.6, lodash.assign@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
-
 lodash.assignwith@^4.0.7:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/lodash.assignwith/-/lodash.assignwith-4.2.0.tgz#127a97f02adc41751a954d24b0de17e100e038eb"
 
-lodash.clonedeep@^4.3.2:
+lodash.clonedeep@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
+  integrity sha512-H5ZhCF25riFd9uB5UCkVKo61m3S/xZk1x4wA6yp/L3RFP6Z/eHH1ymQcGLo7J3GMPfm0V/7m1tryHuGVxpqEBQ==
 
 lodash.create@3.1.1:
   version "3.1.1"
@@ -2581,10 +2599,6 @@ lodash@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-1.0.2.tgz#8f57560c83b59fc270bd3d561b690043430e2551"
 
-lodash@~4.16.4:
-  version "4.16.6"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.16.6.tgz#d22c9ac660288f3843e16ba7d2b5d06cca27d777"
-
 loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
@@ -2633,7 +2647,7 @@ media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
-meow@^3.3.0, meow@^3.7.0:
+meow@^3.3.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
   dependencies:
@@ -2698,7 +2712,7 @@ minimatch@^2.0.1:
   dependencies:
     brace-expansion "^1.0.0"
 
-minimatch@^3.0.0, minimatch@^3.0.2, minimatch@~3.0.2:
+minimatch@^3.0.0, minimatch@^3.0.2:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
   dependencies:
@@ -2775,7 +2789,7 @@ mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-nan@^2.3.0, nan@^2.3.2:
+nan@^2.3.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.5.0.tgz#aa8f1e34531d807e9e27755b234b4a6ec0c152a8"
 
@@ -2805,24 +2819,6 @@ nested-error-stacks@^1.0.0:
   dependencies:
     inherits "~2.0.1"
 
-node-gyp@^3.3.1:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.5.0.tgz#a8fe5e611d079ec16348a3eb960e78e11c85274a"
-  dependencies:
-    fstream "^1.0.0"
-    glob "^7.0.3"
-    graceful-fs "^4.1.2"
-    minimatch "^3.0.2"
-    mkdirp "^0.5.0"
-    nopt "2 || 3"
-    npmlog "0 || 1 || 2 || 3 || 4"
-    osenv "0"
-    request "2"
-    rimraf "2"
-    semver "2.x || 3.x || 4 || 5"
-    tar "^2.0.0"
-    which "1"
-
 node-pre-gyp@^0.6.29:
   version "0.6.32"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.32.tgz#fc452b376e7319b3d255f5f34853ef6fd8fe1fd5"
@@ -2837,27 +2833,6 @@ node-pre-gyp@^0.6.29:
     tar "~2.2.1"
     tar-pack "~3.3.0"
 
-node-sass@^3.4.2:
-  version "3.13.1"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-3.13.1.tgz#7240fbbff2396304b4223527ed3020589c004fc2"
-  dependencies:
-    async-foreach "^0.1.3"
-    chalk "^1.1.1"
-    cross-spawn "^3.0.0"
-    gaze "^1.0.0"
-    get-stdin "^4.0.1"
-    glob "^7.0.3"
-    in-publish "^2.0.0"
-    lodash.assign "^4.2.0"
-    lodash.clonedeep "^4.3.2"
-    meow "^3.7.0"
-    mkdirp "^0.5.1"
-    nan "^2.3.2"
-    node-gyp "^3.3.1"
-    npmlog "^4.0.0"
-    request "^2.61.0"
-    sass-graph "^2.1.1"
-
 node-uuid@~1.4.7:
   version "1.4.7"
   resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.7.tgz#6da5a17668c4b3dd59623bda11cf7fa4c1f60a6f"
@@ -2877,7 +2852,7 @@ nodemon@^1.10.2:
     undefsafe "0.0.3"
     update-notifier "0.5.0"
 
-"nopt@2 || 3", nopt@3.0.x, nopt@~3.0.6:
+nopt@3.0.x, nopt@~3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
   dependencies:
@@ -2902,7 +2877,7 @@ normalize-path@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.0.1.tgz#47886ac1662760d4261b7d979d241709d3ce3f7a"
 
-"npmlog@0 || 1 || 2 || 3 || 4", npmlog@^4.0.0, npmlog@^4.0.1:
+npmlog@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.0.2.tgz#d03950e0e78ce1527ba26d2a7592e9348ac3e75f"
   dependencies:
@@ -3026,7 +3001,7 @@ os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
-osenv@0, osenv@^0.1.0:
+osenv@^0.1.0:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.4.tgz#42fe6d5953df06c8064be6f176c3d05aaaa34644"
   dependencies:
@@ -3131,6 +3106,11 @@ pause-stream@0.0.11:
   dependencies:
     through "~2.3"
 
+picocolors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
+  integrity sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==
+
 pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
@@ -3161,6 +3141,16 @@ pkginfo@0.x.x:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.4.0.tgz#349dbb7ffd38081fcadc0853df687f0c7744cd65"
 
+plugin-error@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/plugin-error/-/plugin-error-1.0.1.tgz#77016bd8919d0ac377fdcdd0322328953ca5781c"
+  integrity sha512-L1zP0dk7vGweZME2i+EeakvUNqSrdiI3F91TwEoYiGrAfUXmVv6fJIq4g82PAXxNsWOp0J7ZqQy/3Szz0ajTxA==
+  dependencies:
+    ansi-colors "^1.0.1"
+    arr-diff "^4.0.0"
+    arr-union "^3.1.0"
+    extend-shallow "^3.0.2"
+
 plur@^2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/plur/-/plur-2.1.2.tgz#7482452c1a0f508e3e344eaec312c91c29dc655a"
@@ -3438,6 +3428,11 @@ replace-ext@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-0.0.1.tgz#29bbd92078a739f0bcce2b4ee41e837953522924"
 
+replace-ext@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-2.0.0.tgz#9471c213d22e1bcc26717cd6e50881d88f812b06"
+  integrity sha512-UszKE5KVK6JvyD92nzMn9cDapSk6w/CaFZ96CnmDMUqH9oowfxF/ZjRITD25H4DnOQClLA4/j7jLGXXLVKxAug==
+
 req-cwd@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/req-cwd/-/req-cwd-1.0.1.tgz#0d73aeae9266e697a78f7976019677e76acf0fff"
@@ -3450,9 +3445,9 @@ req-from@^1.0.1:
   dependencies:
     resolve-from "^2.0.0"
 
-request@2, request@^2.61.0, request@^2.79.0:
-  version "2.79.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+request@2.78.0:
+  version "2.78.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.78.0.tgz#e1c8dec346e1c81923b24acdb337f11decabe9cc"
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
@@ -3468,16 +3463,16 @@ request@2, request@^2.61.0, request@^2.79.0:
     isstream "~0.1.2"
     json-stringify-safe "~5.0.1"
     mime-types "~2.1.7"
+    node-uuid "~1.4.7"
     oauth-sign "~0.8.1"
     qs "~6.3.0"
     stringstream "~0.0.4"
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
-    uuid "^3.0.0"
 
-request@2.78.0:
-  version "2.78.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.78.0.tgz#e1c8dec346e1c81923b24acdb337f11decabe9cc"
+request@^2.79.0:
+  version "2.79.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
@@ -3493,12 +3488,12 @@ request@2.78.0:
     isstream "~0.1.2"
     json-stringify-safe "~5.0.1"
     mime-types "~2.1.7"
-    node-uuid "~1.4.7"
     oauth-sign "~0.8.1"
     qs "~6.3.0"
     stringstream "~0.0.4"
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
+    uuid "^3.0.0"
 
 require-dir@^0.3.0:
   version "0.3.1"
@@ -3599,21 +3594,13 @@ rx@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
 
-sass-graph@^2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/sass-graph/-/sass-graph-2.1.2.tgz#965104be23e8103cb7e5f710df65935b317da57b"
-  dependencies:
-    glob "^7.0.0"
-    lodash "^4.0.0"
-    yargs "^4.7.1"
-
 semver-diff@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
   dependencies:
     semver "^5.0.3"
 
-"semver@2 || 3 || 4 || 5", "semver@2.x || 3.x || 4 || 5", semver@^4.1.0:
+"semver@2 || 3 || 4 || 5", semver@^4.1.0:
   version "4.3.6"
   resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.6.tgz#300bc6e0e86374f7ba61068b5b1ecd57fc6532da"
 
@@ -3978,6 +3965,13 @@ strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   dependencies:
     ansi-regex "^2.0.0"
 
+strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-bom@2.X, strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -4073,7 +4067,7 @@ tar-pack@~3.3.0:
     tar "~2.2.1"
     uid-number "~0.0.6"
 
-tar@^2.0.0, tar@~2.2.1:
+tar@~2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
   dependencies:
@@ -4337,9 +4331,10 @@ vinyl-fs@^0.3.0:
     through2 "^0.6.1"
     vinyl "^0.4.0"
 
-vinyl-sourcemaps-apply@^0.2.0:
+vinyl-sourcemaps-apply@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/vinyl-sourcemaps-apply/-/vinyl-sourcemaps-apply-0.2.1.tgz#ab6549d61d172c2b1b87be5c508d239c8ef87705"
+  integrity sha512-+oDh3KYZBoZC8hfocrbrxbLUeaYtQK7J5WU5Br9VqWqmCll3tFJqKp97GC9GmMsVIL0qnx2DgEDVxdo5EZ5sSw==
   dependencies:
     source-map "^0.5.1"
 
@@ -4388,7 +4383,7 @@ which-module@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
 
-which@1, which@^1.2.12, which@^1.2.9:
+which@^1.2.12, which@^1.2.9:
   version "1.2.12"
   resolved "https://registry.yarnpkg.com/which/-/which-1.2.12.tgz#de67b5e450269f194909ef23ece4ebe416fa1192"
   dependencies:
@@ -4492,13 +4487,6 @@ yallist@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.0.0.tgz#306c543835f09ee1a4cb23b7bce9ab341c91cdd4"
 
-yargs-parser@^2.4.1:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-2.4.1.tgz#85568de3cf150ff49fa51825f03a8c880ddcc5c4"
-  dependencies:
-    camelcase "^3.0.0"
-    lodash.assign "^4.0.6"
-
 yargs-parser@^4.1.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
@@ -4547,25 +4535,6 @@ yargs@^3.32.0:
     window-size "^0.1.4"
     y18n "^3.2.0"
 
-yargs@^4.7.1:
-  version "4.8.1"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-4.8.1.tgz#c0c42924ca4aaa6b0e6da1739dfb216439f9ddc0"
-  dependencies:
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    lodash.assign "^4.0.3"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.1"
-    which-module "^1.0.0"
-    window-size "^0.2.0"
-    y18n "^3.2.1"
-    yargs-parser "^2.4.1"
-
 yeast@0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"