Replace js-url with wurl

js-url is outdated and wurl is it's successor. This will fix some
vulnerabilities in the dependencies and also optimize the build process
by removing the external library toward internal tooling.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

webpack.common.js

@@ -195,13 +195,11 @@ module.exports = {
       'bootstrap-validator',
       'expose-loader?select2!select2',
       'expose-loader?moment!moment',
-      'script-loader!js-url',
       path.join(__dirname, 'public/js/cover.js')
     ],
     index: [
       'babel-polyfill',
       'script-loader!jquery-ui-resizable',
-      'script-loader!js-url',
       'script-loader!Idle.Js',
       'expose-loader?LZString!lz-string',
       'script-loader!codemirror',
@@ -248,7 +246,6 @@ module.exports = {
       'expose-loader?jsyaml!js-yaml',
       'script-loader!mermaid',
       'expose-loader?moment!moment',
-      'script-loader!js-url',
       'script-loader!handlebars',
       'expose-loader?hljs!highlight.js',
       'expose-loader?emojify!emojify.js',