diff --git a/yarn.lock b/yarn.lock
index 72c1192..74c0ea0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -238,7 +238,7 @@ async-each@^1.0.0:
 
 async@^1.5.2:
   version "1.5.2"
-  resolved "http://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  resolved "https://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
 atob@^2.1.1:
   version "2.1.2"
@@ -308,7 +308,7 @@ brorand@^1.0.1:
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
+  resolved "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
   dependencies:
     buffer-xor "^1.0.3"
     cipher-base "^1.0.0"
@@ -336,7 +336,7 @@ browserify-des@^1.0.0:
 
 browserify-rsa@^4.0.0:
   version "4.0.1"
-  resolved "http://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
+  resolved "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
   dependencies:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
@@ -373,7 +373,7 @@ buffer-xor@^1.0.3:
 
 buffer@^4.3.0:
   version "4.9.1"
-  resolved "http://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
+  resolved "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -504,7 +504,7 @@ color-name@1.1.3:
 
 colors@1.0.3:
   version "1.0.3"
-  resolved "http://registry.npmjs.org/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+  resolved "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
 
 commander@~2.17.1:
   version "2.17.1"
@@ -577,7 +577,7 @@ create-ecdh@^4.0.0:
 
 create-hash@^1.1.0, create-hash@^1.1.2:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
+  resolved "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
   dependencies:
     cipher-base "^1.0.1"
     inherits "^2.0.1"
@@ -587,7 +587,7 @@ create-hash@^1.1.0, create-hash@^1.1.2:
 
 create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
   version "1.1.7"
-  resolved "http://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
+  resolved "https://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
   dependencies:
     cipher-base "^1.0.3"
     create-hash "^1.1.0"
@@ -630,12 +630,6 @@ date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
-debug@=3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
-  dependencies:
-    ms "2.0.0"
-
 debug@^2.1.2, debug@^2.2.0, debug@^2.3.3:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -690,7 +684,7 @@ detect-libc@^1.0.2:
 
 diffie-hellman@^5.0.0:
   version "5.0.3"
-  resolved "http://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
+  resolved "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
   dependencies:
     bn.js "^4.1.0"
     miller-rabin "^4.0.0"
@@ -781,7 +775,7 @@ eventemitter3@^3.0.0:
 
 events@^1.0.0:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
+  resolved "https://registry.npmjs.org/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
 
 evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
   version "1.0.3"
@@ -883,10 +877,8 @@ flush-write-stream@^1.0.0:
     readable-stream "^2.0.4"
 
 follow-redirects@^1.0.0:
-  version "1.5.10"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
-  dependencies:
-    debug "=3.1.0"
+  version "1.14.8"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.8.tgz#016996fb9a11a100566398b1c6839337d7bfa8fc"
 
 for-in@^1.0.2:
   version "1.0.2"
@@ -950,7 +942,7 @@ 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"
@@ -1268,7 +1260,7 @@ json-schema-traverse@^0.4.1:
 
 json5@^0.5.0:
   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"
 
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
@@ -1426,15 +1418,15 @@ 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@^1.1.0, 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@^2.3.4:
   version "2.3.5"
@@ -1473,7 +1465,7 @@ mixin-deep@^1.2.0:
 
 mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
   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"
 
@@ -1661,7 +1653,7 @@ os-browserify@^0.3.0:
 
 os-homedir@^1.0.0:
   version "1.0.2"
-  resolved "http://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+  resolved "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
 os-locale@^3.0.0:
   version "3.0.1"
@@ -1673,7 +1665,7 @@ os-locale@^3.0.0:
 
 os-tmpdir@^1.0.0:
   version "1.0.2"
-  resolved "http://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+  resolved "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
 osenv@^0.1.4:
   version "0.1.5"
@@ -1692,7 +1684,7 @@ p-finally@^1.0.0:
 
 p-is-promise@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
+  resolved "https://registry.npmjs.org/p-is-promise/-/p-is-promise-1.1.0.tgz#9c9456989e9f6588017b0434d56097675c3da05e"
 
 p-limit@^2.0.0:
   version "2.0.0"
@@ -1724,7 +1716,7 @@ parallel-transform@^1.1.0:
 
 parse-asn1@^5.0.0:
   version "5.1.1"
-  resolved "http://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
+  resolved "https://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
   dependencies:
     asn1.js "^4.0.0"
     browserify-aes "^1.0.0"
@@ -1738,7 +1730,7 @@ pascalcase@^0.1.1:
 
 path-browserify@0.0.0:
   version "0.0.0"
-  resolved "http://registry.npmjs.org/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
+  resolved "https://registry.npmjs.org/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
 
 path-dirname@^1.0.0:
   version "1.0.2"
@@ -1750,7 +1742,7 @@ path-exists@^3.0.0:
 
 path-is-absolute@^1.0.0:
   version "1.0.1"
-  resolved "http://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+  resolved "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
 path-key@^2.0.0, path-key@^2.0.1:
   version "2.0.1"
@@ -1862,7 +1854,7 @@ punycode@^2.1.0:
 
 qs@~2.3.3:
   version "2.3.3"
-  resolved "http://registry.npmjs.org/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
+  resolved "https://registry.npmjs.org/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
 
 querystring-es3@^0.2.0:
   version "0.2.1"
@@ -1914,7 +1906,7 @@ rc@^1.2.7:
 
 "readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
   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"
@@ -2013,7 +2005,7 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2,
 
 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"
 
@@ -2083,7 +2075,7 @@ setimmediate@^1.0.4:
 
 sha.js@^2.4.0, sha.js@^2.4.8:
   version "2.4.11"
-  resolved "http://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
+  resolved "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
@@ -2183,7 +2175,7 @@ static-extend@^0.1.1:
 
 stream-browserify@^2.0.1:
   version "2.0.1"
-  resolved "http://registry.npmjs.org/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
+  resolved "https://registry.npmjs.org/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
   dependencies:
     inherits "~2.0.1"
     readable-stream "^2.0.2"
@@ -2232,13 +2224,13 @@ string_decoder@^1.0.0:
 
 string_decoder@~1.1.1:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  resolved "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
   dependencies:
     safe-buffer "~5.1.0"
 
 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"
 
@@ -2250,7 +2242,7 @@ strip-ansi@^4.0.0:
 
 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"
@@ -2344,7 +2336,7 @@ tslib@^1.9.0:
 
 tty-browserify@0.0.0:
   version "0.0.0"
-  resolved "http://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
+  resolved "https://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
 
 typedarray@^0.0.6:
   version "0.0.6"
@@ -2361,7 +2353,7 @@ union-value@^1.0.0:
 
 union@~0.4.3:
   version "0.4.6"
-  resolved "http://registry.npmjs.org/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
+  resolved "https://registry.npmjs.org/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
   dependencies:
     qs "~2.3.3"
 
@@ -2419,7 +2411,7 @@ util-deprecate@~1.0.1:
 
 util@0.10.3:
   version "0.10.3"
-  resolved "http://registry.npmjs.org/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
+  resolved "https://registry.npmjs.org/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
   dependencies:
     inherits "2.0.1"
 
@@ -2435,7 +2427,7 @@ v8-compile-cache@^2.0.2:
 
 vm-browserify@0.0.4:
   version "0.0.4"
-  resolved "http://registry.npmjs.org/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
+  resolved "https://registry.npmjs.org/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
   dependencies:
     indexof "0.0.1"
 
@@ -2526,7 +2518,7 @@ worker-farm@^1.5.2:
 
 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"