Update dependencies

Fixes #471
Fixes #472

yarn.lock

@@ -714,9 +714,9 @@ jodid25519@^1.0.0:
   dependencies:
     jsbn "~0.1.0"
 
-js-tokens@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-2.0.0.tgz#79903f5563ee778cc1162e6dcf1a0027c97f9cb5"
+js-tokens@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.0.tgz#a2f2a969caae142fb3cd56228358c89366957bd1"
 
 js-yaml@^3.5.5:
   version "3.7.0"
@@ -836,10 +836,10 @@ lolex@1.3.2:
   resolved "https://registry.yarnpkg.com/lolex/-/lolex-1.3.2.tgz#7c3da62ffcb30f0f5a80a2566ca24e45d8a01f31"
 
 loose-envify@^1.0.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.0.tgz#6b26248c42f6d4fa4b0d8542f78edfcde35642a8"
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
   dependencies:
-    js-tokens "^2.0.0"
+    js-tokens "^3.0.0"
 
 loud-rejection@^1.2.0:
   version "1.6.0"
@@ -910,21 +910,17 @@ ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
 
-mute-stream@0.0.6:
+mute-stream@0.0.6, mute-stream@~0.0.4:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
 
-mute-stream@~0.0.4:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
-
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
 
 node-emoji@^1.0.4:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/node-emoji/-/node-emoji-1.5.0.tgz#9a0d9fe03fd43afa357d6d8e439aa31e599959b7"
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/node-emoji/-/node-emoji-1.5.1.tgz#fd918e412769bf8c448051238233840b2aff16a1"
   dependencies:
     string.prototype.codepointat "^0.2.0"