fix(dev-utils): refactor hotDevClient to ES5 compat

Fixes egoist#515

core/dev-utils/formatWebpackMessages.js

@@ -7,9 +7,6 @@
 // Some custom utilities to prettify Webpack output.
 // This is quite hacky and hopefully won't be needed when Webpack fixes this.
 // https://github.com/webpack/webpack/issues/2878
-
-var chalk = require('chalk');
-
 var friendlySyntaxErrorLabel = 'Syntax error:';
 
 function isLikelyASyntaxError(message) {
@@ -69,12 +66,10 @@ function formatMessage(message, isError) {
     lines[1] = lines[1].replace(exportError, '$1 \'$4\' does not contain an export named \'$3\'.');
   }
 
-  lines[0] = chalk.inverse(lines[0]);
-
   // Reassemble the message.
-  message = lines.map(line => {
+  message = lines.map(function (line) {
     if (line.indexOf('vue-template-compiler must be installed as a peer dependency') > -1) {
-      return `You need to install "vue-template-compiler" alongside "vue" in your project.`
+      return 'You need to install "vue-template-compiler" alongside "vue" in your project.'
     }
     return line
   }).join('\n');

core/dev-utils/package.json

@@ -16,7 +16,7 @@
     "opn": "^5.4.0",
     "react-error-overlay": "^4.0.1",
     "sockjs-client": "^1.1.5",
-    "strip-ansi": "^4.0.0"
+    "strip-ansi": "3.0.0"
   },
   "xo": false
 }

yarn.lock

@@ -11647,6 +11647,13 @@ stringify-object@^3.2.2, stringify-object@^3.3.0:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
+[email protected]:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.0.tgz#7510b665567ca914ccb5d7e072763ac968be3724"
+  integrity sha1-dRC2ZVZ8qRTMtdfgcnY6yWi+NyQ=
+  dependencies:
+    ansi-regex "^2.0.0"
+
 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"