diff --git a/yarn.lock b/yarn.lock
index 87f6425..278f610 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -612,7 +612,7 @@ ajv@^5.3.0:
 
 ansi-colors@^1.0.1:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz#6374b4dd5d4718ff3ce27a671a3b1cad077132a9"
+  resolved "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz#6374b4dd5d4718ff3ce27a671a3b1cad077132a9"
   dependencies:
     ansi-wrap "^0.1.0"
 
@@ -948,7 +948,7 @@ babel-plugin-check-es2015-constants@^6.8.0:
 
 babel-plugin-istanbul@^4.1.6:
   version "4.1.6"
-  resolved "http://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
+  resolved "https://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
   dependencies:
     babel-plugin-syntax-object-rest-spread "^6.13.0"
     find-up "^2.1.0"
@@ -1426,7 +1426,7 @@ caseless@~0.12.0:
 
 chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -1600,7 +1600,7 @@ copy-descriptor@^0.1.0:
 
 core-js@^1.0.0:
   version "1.2.7"
-  resolved "http://registry.npmjs.org/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+  resolved "https://registry.npmjs.org/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
 
 core-js@^2.2.2, core-js@^2.4.0, core-js@^2.4.1, core-js@^2.5.0, core-js@^2.5.7:
   version "2.5.7"
@@ -1950,7 +1950,7 @@ extend@~3.0.2:
 
 external-editor@^2.0.4:
   version "2.2.0"
-  resolved "http://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
+  resolved "https://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
   dependencies:
     chardet "^0.4.0"
     iconv-lite "^0.4.17"
@@ -1993,7 +1993,7 @@ fancy-log@^1.3.2:
 
 fast-deep-equal@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
+  resolved "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
 
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
@@ -2212,7 +2212,7 @@ get-caller-file@^1.0.1:
 
 get-stream@^3.0.0:
   version "3.0.0"
-  resolved "http://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+  resolved "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
 
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
@@ -2370,7 +2370,7 @@ html-encoding-sniffer@^1.0.2:
 
 http-errors@~1.6.2:
   version "1.6.3"
-  resolved "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
     depd "~1.1.2"
     inherits "2.0.3"
@@ -2478,7 +2478,7 @@ is-buffer@^1.1.5:
 
 is-builtin-module@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  resolved "https://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
   dependencies:
     builtin-modules "^1.0.0"
 
@@ -2837,7 +2837,7 @@ jest-environment-node@^23.4.0:
 
 jest-get-type@^22.1.0:
   version "22.4.3"
-  resolved "http://registry.npmjs.org/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
+  resolved "https://registry.npmjs.org/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
 
 jest-haste-map@23.5.0:
   version "23.5.0"
@@ -3121,11 +3121,11 @@ json-stringify-safe@~5.0.1:
 
 json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+  resolved "https://registry.npmjs.org/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
 jsonfile@^2.1.0:
   version "2.4.0"
-  resolved "http://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
+  resolved "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
   optionalDependencies:
     graceful-fs "^4.1.6"
 
@@ -3144,7 +3144,7 @@ jsprim@^1.2.2:
 
 kind-of@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/kind-of/-/kind-of-1.1.0.tgz#140a3d2d41a36d2efcfa9377b62c24f8495a5c44"
+  resolved "https://registry.npmjs.org/kind-of/-/kind-of-1.1.0.tgz#140a3d2d41a36d2efcfa9377b62c24f8495a5c44"
 
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
@@ -3199,7 +3199,7 @@ levn@~0.3.0:
 
 load-json-file@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  resolved "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -3209,7 +3209,7 @@ load-json-file@^1.0.0:
 
 load-json-file@^2.0.0:
   version "2.0.0"
-  resolved "http://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  resolved "https://registry.npmjs.org/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -3244,8 +3244,8 @@ lodash.throttle@^4.1.1:
   resolved "https://registry.yarnpkg.com/lodash.throttle/-/lodash.throttle-4.1.1.tgz#c23e91b710242ac70c37f1e1cda9274cc39bf2f4"
 
 lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.6.1:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1:
   version "1.4.0"
@@ -3557,11 +3557,11 @@ micromatch@^3.1.4:
 
 mime-db@~1.23.0:
   version "1.23.0"
-  resolved "http://registry.npmjs.org/mime-db/-/mime-db-1.23.0.tgz#a31b4070adaea27d732ea333740a64d0ec9a6659"
+  resolved "https://registry.npmjs.org/mime-db/-/mime-db-1.23.0.tgz#a31b4070adaea27d732ea333740a64d0ec9a6659"
 
 mime-types@2.1.11:
   version "2.1.11"
-  resolved "http://registry.npmjs.org/mime-types/-/mime-types-2.1.11.tgz#c259c471bda808a85d6cd193b430a5fae4473b3c"
+  resolved "https://registry.npmjs.org/mime-types/-/mime-types-2.1.11.tgz#c259c471bda808a85d6cd193b430a5fae4473b3c"
   dependencies:
     mime-db "~1.23.0"
 
@@ -3597,15 +3597,15 @@ minimatch@^3.0.3, minimatch@^3.0.4:
 
 minimist@0.0.8:
   version "0.0.8"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 minimist@^1.1.1, minimist@^1.2.0:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
 minimist@~0.0.1:
   version "0.0.10"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
 
 minipass@^2.2.1, minipass@^2.3.3:
   version "2.3.5"
@@ -3629,7 +3629,7 @@ mixin-deep@^1.2.0:
 
 mkdirp@^0.5.0, mkdirp@^0.5.1:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
@@ -3775,7 +3775,7 @@ npm-run-path@^2.0.0:
 
 npmlog@^2.0.4:
   version "2.0.4"
-  resolved "http://registry.npmjs.org/npmlog/-/npmlog-2.0.4.tgz#98b52530f2514ca90d09ec5b22c8846722375692"
+  resolved "https://registry.npmjs.org/npmlog/-/npmlog-2.0.4.tgz#98b52530f2514ca90d09ec5b22c8846722375692"
   dependencies:
     ansi "~0.3.1"
     are-we-there-yet "~1.1.2"
@@ -3872,7 +3872,7 @@ onetime@^2.0.0:
 
 opn@^3.0.2:
   version "3.0.3"
-  resolved "http://registry.npmjs.org/opn/-/opn-3.0.3.tgz#b6d99e7399f78d65c3baaffef1fb288e9b85243a"
+  resolved "https://registry.npmjs.org/opn/-/opn-3.0.3.tgz#b6d99e7399f78d65c3baaffef1fb288e9b85243a"
   dependencies:
     object-assign "^4.0.1"
 
@@ -4017,7 +4017,7 @@ performance-now@^2.1.0:
 
 pify@^2.0.0:
   version "2.3.0"
-  resolved "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+  resolved "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
 pify@^3.0.0:
   version "3.0.0"
@@ -4315,7 +4315,7 @@ read-pkg@^2.0.0:
 
 readable-stream@^2.0.1, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2:
   version "2.3.6"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -4497,7 +4497,7 @@ rimraf@^2.5.4, rimraf@^2.6.1:
 
 rimraf@~2.2.6:
   version "2.2.8"
-  resolved "http://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
+  resolved "https://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
 
 rsvp@^3.3.3:
   version "3.6.2"
@@ -4525,7 +4525,7 @@ safe-buffer@5.1.2, safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, s
 
 safe-regex@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  resolved "https://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
   dependencies:
     ret "~0.1.10"
 
@@ -4554,7 +4554,7 @@ sax@^1.2.4:
 
 sax@~1.1.1:
   version "1.1.6"
-  resolved "http://registry.npmjs.org/sax/-/sax-1.1.6.tgz#5d616be8a5e607d54e114afae55b7eaf2fcc3240"
+  resolved "https://registry.npmjs.org/sax/-/sax-1.1.6.tgz#5d616be8a5e607d54e114afae55b7eaf2fcc3240"
 
 scheduler@^0.10.0-alpha.8af6728:
   version "0.10.0"
@@ -4587,7 +4587,7 @@ send@0.16.2:
 
 serialize-error@^2.1.0:
   version "2.1.0"
-  resolved "http://registry.npmjs.org/serialize-error/-/serialize-error-2.1.0.tgz#50b679d5635cdf84667bdc8e59af4e5b81d5f60a"
+  resolved "https://registry.npmjs.org/serialize-error/-/serialize-error-2.1.0.tgz#50b679d5635cdf84667bdc8e59af4e5b81d5f60a"
 
 serve-static@^1.13.1:
   version "1.13.2"
@@ -4848,7 +4848,7 @@ string_decoder@~1.1.1:
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
-  resolved "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
   dependencies:
     ansi-regex "^2.0.0"
 
@@ -4870,7 +4870,7 @@ strip-bom@^2.0.0:
 
 strip-eof@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+  resolved "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
 
 strip-json-comments@~2.0.1:
   version "2.0.1"
@@ -4938,7 +4938,7 @@ through2@^2.0.0:
 
 through@^2.3.6:
   version "2.3.8"
-  resolved "http://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  resolved "https://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
 time-stamp@^1.0.0:
   version "1.1.0"
@@ -5211,7 +5211,7 @@ wordwrap@~0.0.2:
 
 wrap-ansi@^2.0.0:
   version "2.1.0"
-  resolved "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
   dependencies:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
@@ -5274,7 +5274,7 @@ xmlbuilder@8.2.2:
 
 xmlbuilder@^9.0.7:
   version "9.0.7"
-  resolved "http://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
+  resolved "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
 
 xmldoc@^0.4.0:
   version "0.4.0"
@@ -5320,7 +5320,7 @@ yargs-parser@^9.0.2:
 
 yargs@^11.0.0:
   version "11.1.0"
-  resolved "http://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
+  resolved "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
   dependencies:
     cliui "^4.0.0"
     decamelize "^1.1.1"