diff --git a/package.json b/package.json
index 6cd7aef..aea31f8 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "chai": "^4.1.2",
     "codecov": "^3.0.0",
     "copy": "^0.3.0",
-    "eslint": "^3.18.0",
+    "eslint": "^4.0.0",
     "eslint-plugin-flowtype": "^2.30.4",
     "eslint-watch": "^3.0.1",
     "flow-bin": "^0.66.0",
diff --git a/yarn.lock b/yarn.lock
index a646fbf..8291d92 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -216,20 +216,20 @@ agent-base@^4.1.0:
   dependencies:
     es6-promisify "^5.0.0"
 
-ajv-keywords@^1.0.0:
-  version "1.5.1"
-  resolved "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-1.5.1.tgz#314dd0a4b3368fad3dfcdc54ede6171b886daf3c"
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
 
-ajv@^4.7.0, ajv@^4.9.1:
+ajv@^4.9.1:
   version "4.11.8"
   resolved "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
   dependencies:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.1.0:
+ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
   version "5.5.2"
-  resolved "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
     co "^4.6.0"
     fast-deep-equal "^1.0.0"
@@ -254,9 +254,9 @@ ansi-align@^2.0.0:
   dependencies:
     string-width "^2.0.0"
 
-ansi-escapes@^1.1.0:
-  version "1.4.0"
-  resolved "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+ansi-escapes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
 
 ansi-green@^0.1.1:
   version "0.1.1"
@@ -439,9 +439,9 @@ aws4@^1.2.1, aws4@^1.6.0:
   version "1.6.0"
   resolved "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
 
-babel-code-frame@^6.16.0, babel-code-frame@^6.26.0:
+babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
-  resolved "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   dependencies:
     chalk "^1.1.3"
     esutils "^2.0.2"
@@ -1121,7 +1121,7 @@ chai@^4.1.2:
     pathval "^1.0.0"
     type-detect "^4.0.0"
 
-chalk@2.3.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0:
+chalk@2.3.0, chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0:
   version "2.3.0"
   resolved "https://registry.npmjs.org/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
   dependencies:
@@ -1129,7 +1129,7 @@ chalk@2.3.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
-chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1139,6 +1139,10 @@ chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+
 check-error@^1.0.1:
   version "1.0.2"
   resolved "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
@@ -1196,11 +1200,11 @@ cli-boxes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/cli-boxes/-/cli-boxes-1.0.0.tgz#4fa917c3e59c94a004cd61f8ee509da651687143"
 
-cli-cursor@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
   dependencies:
-    restore-cursor "^1.0.1"
+    restore-cursor "^2.0.0"
 
 cli-table@^0.3.1:
   version "0.3.1"
@@ -1312,9 +1316,9 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.5.2:
+concat-stream@^1.5.2, concat-stream@^1.6.0:
   version "1.6.0"
-  resolved "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
   dependencies:
     inherits "^2.0.3"
     readable-stream "^2.2.2"
@@ -1440,9 +1444,9 @@ cross-spawn@^4:
     lru-cache "^4.0.1"
     which "^1.2.9"
 
-cross-spawn@^5.0.1:
+cross-spawn@^5.0.1, cross-spawn@^5.1.0:
   version "5.1.0"
-  resolved "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
   dependencies:
     lru-cache "^4.0.1"
     shebang-command "^1.2.0"
@@ -1470,12 +1474,6 @@ currently-unhandled@^0.4.1:
   dependencies:
     array-find-index "^1.0.1"
 
-d@1:
-  version "1.0.0"
-  resolved "https://registry.npmjs.org/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
-  dependencies:
-    es5-ext "^0.10.9"
-
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.npmjs.org/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
@@ -1505,7 +1503,7 @@ debug@3.1.0, debug@^3.0.1, debug@^3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@^2.1.1, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
+debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -1598,9 +1596,9 @@ dir-glob@^2.0.0:
     arrify "^1.0.1"
     path-type "^3.0.0"
 
-doctrine@^2.0.0:
+doctrine@^2.1.0:
   version "2.1.0"
-  resolved "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
   dependencies:
     esutils "^2.0.2"
 
@@ -1663,32 +1661,6 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.38"
-  resolved "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.38.tgz#fa7d40d65bbc9bb8a67e1d3f9cc656a00530eed3"
-  dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
-
-es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.npmjs.org/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
-es6-map@^0.1.3:
-  version "0.1.5"
-  resolved "https://registry.npmjs.org/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-set "~0.1.5"
-    es6-symbol "~3.1.1"
-    event-emitter "~0.3.5"
-
 es6-promise@^4.0.3:
   version "4.2.2"
   resolved "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.2.tgz#f722d7769af88bd33bc13ec6605e1f92966b82d9"
@@ -1699,32 +1671,6 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
-es6-set@~0.1.5:
-  version "0.1.5"
-  resolved "https://registry.npmjs.org/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-symbol "3.1.1"
-    event-emitter "~0.3.5"
-
-es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-es6-weak-map@^2.0.1:
-  version "2.0.2"
-  resolved "https://registry.npmjs.org/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.14"
-    es6-iterator "^2.0.1"
-    es6-symbol "^3.1.1"
-
 escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
@@ -1740,21 +1686,23 @@ escodegen@1.8.x:
   optionalDependencies:
     source-map "~0.2.0"
 
-escope@^3.6.0:
-  version "3.6.0"
-  resolved "https://registry.npmjs.org/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
-  dependencies:
-    es6-map "^0.1.3"
-    es6-weak-map "^2.0.1"
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
 eslint-plugin-flowtype@^2.30.4:
   version "2.41.0"
   resolved "https://registry.npmjs.org/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.41.0.tgz#fd5221c60ba917c059d7ef69686a99cca09fd871"
   dependencies:
     lodash "^4.15.0"
 
+eslint-scope@^3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-visitor-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+
 eslint-watch@^3.0.1:
   version "3.1.3"
   resolved "https://registry.npmjs.org/eslint-watch/-/eslint-watch-3.1.3.tgz#e3882a93f02ba4d8a797562fa9c3815e3181c4ba"
@@ -1772,49 +1720,51 @@ eslint-watch@^3.0.1:
     text-table "^0.2.0"
     unicons "0.0.3"
 
-eslint@^3.18.0:
-  version "3.19.0"
-  resolved "https://registry.npmjs.org/eslint/-/eslint-3.19.0.tgz#c8fc6201c7f40dd08941b87c085767386a679acc"
+eslint@^4.0.0:
+  version "4.16.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.16.0.tgz#934ada9e98715e1d7bbfd6f6f0519ed2fab35cc1"
   dependencies:
-    babel-code-frame "^6.16.0"
-    chalk "^1.1.3"
-    concat-stream "^1.5.2"
-    debug "^2.1.1"
-    doctrine "^2.0.0"
-    escope "^3.6.0"
-    espree "^3.4.0"
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
+    eslint-scope "^3.7.1"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.2"
     esquery "^1.0.0"
-    estraverse "^4.2.0"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
-    glob "^7.0.3"
-    globals "^9.14.0"
-    ignore "^3.2.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
     imurmurhash "^0.1.4"
-    inquirer "^0.12.0"
-    is-my-json-valid "^2.10.0"
+    inquirer "^3.0.6"
     is-resolvable "^1.0.0"
-    js-yaml "^3.5.1"
-    json-stable-stringify "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
-    lodash "^4.0.0"
-    mkdirp "^0.5.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
     natural-compare "^1.4.0"
     optionator "^0.8.2"
-    path-is-inside "^1.0.1"
-    pluralize "^1.2.1"
-    progress "^1.1.8"
-    require-uncached "^1.0.2"
-    shelljs "^0.7.5"
-    strip-bom "^3.0.0"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
     strip-json-comments "~2.0.1"
-    table "^3.7.8"
+    table "^4.0.1"
     text-table "~0.2.0"
-    user-home "^2.0.0"
 
-espree@^3.4.0:
+espree@^3.5.2:
   version "3.5.2"
-  resolved "https://registry.npmjs.org/espree/-/espree-3.5.2.tgz#756ada8b979e9dcfcdb30aad8d1a9304a905e1ca"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.2.tgz#756ada8b979e9dcfcdb30aad8d1a9304a905e1ca"
   dependencies:
     acorn "^5.2.1"
     acorn-jsx "^3.0.0"
@@ -1848,7 +1798,7 @@ estraverse@^1.9.1:
   version "1.9.3"
   resolved "https://registry.npmjs.org/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
 
-estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1, estraverse@^4.2.0:
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
   version "4.2.0"
   resolved "https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
 
@@ -1856,13 +1806,6 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
-event-emitter@~0.3.5:
-  version "0.3.5"
-  resolved "https://registry.npmjs.org/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
 event-stream@~3.3.0:
   version "3.3.4"
   resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
@@ -1899,10 +1842,6 @@ execa@^0.9.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
-exit-hook@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.npmjs.org/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
-
 expand-brackets@^0.1.4:
   version "0.1.5"
   resolved "https://registry.npmjs.org/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
@@ -1950,6 +1889,14 @@ extend@~3.0.0, extend@~3.0.1:
   version "3.0.1"
   resolved "https://registry.npmjs.org/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
+external-editor@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
 extglob@^0.3.1:
   version "0.3.2"
   resolved "https://registry.npmjs.org/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
@@ -1989,12 +1936,11 @@ fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
 
-figures@^1.3.5:
-  version "1.7.0"
-  resolved "https://registry.npmjs.org/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
   dependencies:
     escape-string-regexp "^1.0.5"
-    object-assign "^4.1.0"
 
 file-contents@^0.2.4:
   version "0.2.4"
@@ -2206,6 +2152,10 @@ fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.npmjs.org/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -2219,16 +2169,6 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.npmjs.org/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
-
-generate-object-property@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.npmjs.org/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
-  dependencies:
-    is-property "^1.0.0"
-
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -2325,7 +2265,7 @@ glob-parent@^3.1.0:
     is-glob "^3.1.0"
     path-dirname "^1.0.0"
 
-glob@7.1.2, glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.2:
+glob@7.1.2, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
   dependencies:
@@ -2368,7 +2308,11 @@ global-prefix@^0.1.4:
     is-windows "^0.2.0"
     which "^1.2.12"
 
-globals@^9.14.0, globals@^9.18.0:
+globals@^11.0.1:
+  version "11.3.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
+
+globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.npmjs.org/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
 
@@ -2615,13 +2559,17 @@ husky@^0.14.3:
     normalize-path "^1.0.0"
     strip-indent "^2.0.0"
 
+iconv-lite@^0.4.17:
+  version "0.4.19"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
+
 ignore-by-default@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/ignore-by-default/-/ignore-by-default-1.0.1.tgz#48ca6d72f6c6a3af00a9ad4ae6876be3889e2b09"
 
-ignore@^3.2.0, ignore@^3.3.5:
+ignore@^3.3.3, ignore@^3.3.5:
   version "3.3.7"
-  resolved "https://registry.npmjs.org/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
 
 import-from@^2.1.0:
   version "2.1.0"
@@ -2658,28 +2606,25 @@ ini@^1.3.4, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.npmjs.org/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
 
-inquirer@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.npmjs.org/inquirer/-/inquirer-0.12.0.tgz#1ef2bfd63504df0bc75785fff8c2c41df12f077e"
+inquirer@^3.0.6:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
   dependencies:
-    ansi-escapes "^1.1.0"
-    ansi-regex "^2.0.0"
-    chalk "^1.0.0"
-    cli-cursor "^1.0.1"
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
     cli-width "^2.0.0"
-    figures "^1.3.5"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
     lodash "^4.3.0"
-    readline2 "^1.0.1"
-    run-async "^0.1.0"
-    rx-lite "^3.1.2"
-    string-width "^1.0.1"
-    strip-ansi "^3.0.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
     through "^2.3.6"
 
-interpret@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.npmjs.org/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
-
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.npmjs.org/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"
@@ -2843,15 +2788,6 @@ is-installed-globally@^0.1.0:
     global-dirs "^0.1.0"
     is-path-inside "^1.0.0"
 
-is-my-json-valid@^2.10.0:
-  version "2.17.1"
-  resolved "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.17.1.tgz#3da98914a70a22f0a8563ef1511a246c6fc55471"
-  dependencies:
-    generate-function "^2.0.0"
-    generate-object-property "^1.1.0"
-    jsonpointer "^4.0.0"
-    xtend "^4.0.0"
-
 is-npm@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
@@ -2916,9 +2852,9 @@ is-primitive@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
 
-is-property@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
+is-promise@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
 is-redirect@^1.0.0:
   version "1.0.0"
@@ -3083,7 +3019,7 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@3.x, js-yaml@^3.5.1, js-yaml@^3.9.0:
+js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.10.0"
   resolved "https://registry.npmjs.org/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
   dependencies:
@@ -3118,7 +3054,11 @@ json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
 
-json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+
+json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
   dependencies:
@@ -3146,10 +3086,6 @@ jsonparse@^1.2.0:
   version "1.3.1"
   resolved "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
 
-jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.npmjs.org/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
-
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
@@ -3537,8 +3473,8 @@ mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1:
     minimist "0.0.8"
 
 mocha@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.0.tgz#cccac988b0bc5477119cba0e43de7af6d6ad8f4e"
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.1.tgz#759b62c836b0732382a62b6b1fb245ec1bc943ac"
   dependencies:
     browser-stdout "1.3.0"
     commander "2.11.0"
@@ -3559,9 +3495,9 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
-mute-stream@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.npmjs.org/mute-stream/-/mute-stream-0.0.5.tgz#8fbfabb0a98a253d3184331f9e8deb7372fac6c0"
+mute-stream@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
 nan@^2.3.0:
   version "2.8.0"
@@ -3802,9 +3738,11 @@ once@1.x, once@^1.3.0, once@^1.3.3:
   dependencies:
     wrappy "1"
 
-onetime@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  dependencies:
+    mimic-fn "^1.0.0"
 
 optimist@^0.6.1:
   version "0.6.1"
@@ -3836,9 +3774,9 @@ os-locale@^2.0.0:
     lcid "^1.0.0"
     mem "^1.1.0"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
-  resolved "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+  resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
 osenv@^0.1.4:
   version "0.1.4"
@@ -3965,7 +3903,7 @@ path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-path-is-inside@^1.0.1:
+path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
@@ -4033,9 +3971,9 @@ pkg-dir@^1.0.0:
   dependencies:
     find-up "^1.0.0"
 
-pluralize@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.npmjs.org/pluralize/-/pluralize-1.2.1.tgz#d1a21483fd22bb41e58a12fa3421823140897c45"
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
 
 posix-character-classes@^0.1.0:
   version "0.1.1"
@@ -4065,9 +4003,9 @@ process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
 
-progress@^1.1.8:
-  version "1.1.8"
-  resolved "https://registry.npmjs.org/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
+progress@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
 
 proto-list@~1.2.1:
   version "1.2.4"
@@ -4188,20 +4126,6 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
-readline2@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.npmjs.org/readline2/-/readline2-1.0.1.tgz#41059608ffc154757b715d9989d199ffbf372e35"
-  dependencies:
-    code-point-at "^1.0.0"
-    is-fullwidth-code-point "^1.0.0"
-    mute-stream "0.0.5"
-
-rechoir@^0.6.2:
-  version "0.6.2"
-  resolved "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
-  dependencies:
-    resolve "^1.1.6"
-
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -4366,7 +4290,7 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
-require-uncached@^1.0.2, require-uncached@^1.0.3:
+require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
   dependencies:
@@ -4410,24 +4334,18 @@ resolve@1.1.x:
   version "1.1.7"
   resolved "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
 
-resolve@^1.1.6:
-  version "1.5.0"
-  resolved "https://registry.npmjs.org/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
-  dependencies:
-    path-parse "^1.0.5"
-
 responselike@1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/responselike/-/responselike-1.0.2.tgz#918720ef3b631c5642be068f15ade5a46f4ba1e7"
   dependencies:
     lowercase-keys "^1.0.0"
 
-restore-cursor@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
   dependencies:
-    exit-hook "^1.0.0"
-    onetime "^1.0.0"
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
 
 retry@^0.10.0:
   version "0.10.1"
@@ -4445,15 +4363,21 @@ rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.2, rimraf@^2.5.4, rimraf@^2.
   dependencies:
     glob "^7.0.5"
 
-run-async@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.npmjs.org/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
   dependencies:
-    once "^1.3.0"
+    is-promise "^2.1.0"
 
-rx-lite@^3.1.2:
-  version "3.1.2"
-  resolved "https://registry.npmjs.org/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  dependencies:
+    rx-lite "*"
+
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
@@ -4540,14 +4464,6 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-shelljs@^0.7.5:
-  version "0.7.8"
-  resolved "https://registry.npmjs.org/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
-  dependencies:
-    glob "^7.0.0"
-    interpret "^1.0.0"
-    rechoir "^0.6.2"
-
 signal-exit@^3.0.0, signal-exit@^3.0.1, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
@@ -4556,9 +4472,11 @@ slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
 
-slice-ansi@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.npmjs.org/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
 
 slide@^1.1.3, slide@^1.1.5:
   version "1.1.6"
@@ -4770,7 +4688,7 @@ string-width@^1.0.1, string-width@^1.0.2:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
-string-width@^2.0.0, string-width@^2.1.1:
+string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   dependencies:
@@ -4864,16 +4782,16 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
-table@^3.7.8:
-  version "3.8.3"
-  resolved "https://registry.npmjs.org/table/-/table-3.8.3.tgz#2bbc542f0fda9861a755d3947fefd8b3f513855f"
+table@^4.0.1:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
   dependencies:
-    ajv "^4.7.0"
-    ajv-keywords "^1.0.0"
-    chalk "^1.1.1"
-    lodash "^4.0.0"
-    slice-ansi "0.0.4"
-    string-width "^2.0.0"
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
 
 tar-pack@^3.4.0:
   version "3.4.1"
@@ -4935,6 +4853,12 @@ timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
+tmp@^0.0.33:
+  version "0.0.33"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  dependencies:
+    os-tmpdir "~1.0.2"
+
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -5156,12 +5080,6 @@ use@^2.0.0:
     isobject "^3.0.0"
     lazy-cache "^2.0.2"
 
-user-home@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.npmjs.org/user-home/-/user-home-2.0.0.tgz#9c70bfd8169bc1dcbf48604e0f04b8b49cde9e9f"
-  dependencies:
-    os-homedir "^1.0.0"
-
 util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
@@ -5274,7 +5192,7 @@ xdg-basedir@^3.0.0:
   version "3.0.0"
   resolved "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"
 
-xtend@^4.0.0, xtend@~4.0.1:
+xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"