Replace sprockets/browserify with Webpack (#2617)

* Replace browserify with webpack

* Add react-intl-translations-manager

* Do not minify in development, add offline-plugin for ServiceWorker background cache updates

* Adjust tests and dependencies

* Fix production deployments

* Fix tests

* More optimizations

* Improve travis cache for npm stuff

* Re-run travis

* Add back support for custom.scss as before

* Remove offline-plugin and babili

* Fix issue with Immutable.List().unshift(...values) not working as expected

* Make travis load schema instead of running all migrations in sequence

* Fix missing React import in WarningContainer. Optimize rendering performance by using ImmutablePureComponent instead of
React.PureComponent. ImmutablePureComponent uses Immutable.is() to compare props. Replace dynamic callback bindings in
<UI />

* Add react definitions to places that use JSX

* Add Procfile.dev for running rails, webpack and streaming API at the same time

app/javascript/mastodon/features/report/components/status_check_box.js

@@ -0,0 +1,40 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import emojify from '../../../emoji';
+import Toggle from 'react-toggle';
+
+class StatusCheckBox extends React.PureComponent {
+
+  render () {
+    const { status, checked, onToggle, disabled } = this.props;
+    const content = { __html: emojify(status.get('content')) };
+
+    if (status.get('reblog')) {
+      return null;
+    }
+
+    return (
+      <div className='status-check-box'>
+        <div
+          className='status__content'
+          dangerouslySetInnerHTML={content}
+        />
+
+        <div className='status-check-box-toggle'>
+          <Toggle checked={checked} onChange={onToggle} disabled={disabled} />
+        </div>
+      </div>
+    );
+  }
+
+}
+
+StatusCheckBox.propTypes = {
+  status: ImmutablePropTypes.map.isRequired,
+  checked: PropTypes.bool,
+  onToggle: PropTypes.func.isRequired,
+  disabled: PropTypes.bool
+};
+
+export default StatusCheckBox;