remove some dead code/files, change react components to .jsx files because of sublime syntax highlighting, fix linting errors

client/index.js

@@ -1,19 +0,0 @@
-import React from 'react'
-import { render } from 'react-dom'
-import { Provider } from 'react-redux'
-import { Router, browserHistory } from 'react-router'
-import configureStore from './store'
-import routes from './routes'
-
-require('./styles/main.scss');
-
-const history = browserHistory
-const initialState = window.__INITIAL_STATE__
-const store = configureStore(initialState)
-
-render(
-	<Provider store={store}>
-		<Router history={history} routes={routes(store)} />
-	</Provider>,
-	document.getElementById('root')
-)

client/index.jsx

@@ -0,0 +1,19 @@
+import React from 'react';
+import { render } from 'react-dom';
+import { Provider } from 'react-redux';
+import { Router, browserHistory } from 'react-router';
+import configureStore from './store';
+import routes from './routes';
+
+require('./styles/main.scss');
+
+const history = browserHistory;
+const initialState = window.__INITIAL_STATE__;
+const store = configureStore(initialState);
+
+render(
+  <Provider store={store}>
+    <Router history={history} routes={routes(store)} />
+  </Provider>,
+	document.getElementById('root')
+);

client/modules/IDE/components/PreviewFrame.jsx

@@ -295,7 +295,6 @@ PreviewFrame.propTypes = {
   isPlaying: PropTypes.bool.isRequired,
   isTextOutputPlaying: PropTypes.bool.isRequired,
   textOutput: PropTypes.bool.isRequired,
-  head: PropTypes.object.isRequired,
   content: PropTypes.string,
   htmlFile: PropTypes.shape({
     content: PropTypes.string.isRequired

client/modules/IDE/pages/IDEView.jsx

@@ -324,9 +324,6 @@ class IDEView extends React.Component {
                   cssFiles={this.props.cssFiles}
                   files={this.props.files}
                   content={this.props.selectedFile.content}
-                  head={
-                    <link type="text/css" rel="stylesheet" href="/preview-styles.css" />
-                  }
                   isPlaying={this.props.ide.isPlaying}
                   isTextOutputPlaying={this.props.ide.isTextOutputPlaying}
                   textOutput={this.props.preferences.textOutput}

static/preview-styles.css

@@ -1,4 +0,0 @@
-html, body {
-	margin: 0;
-	padding: 0;
-}

webpack.config.dev.js

@@ -6,7 +6,7 @@ module.exports = {
 	entry: {
     app: ['babel-polyfill',
           'webpack-hot-middleware/client',
-          './client/index.js',
+          './client/index.jsx',
     ],
     vendor: [
       'react',

webpack.config.prod.js

@@ -14,7 +14,7 @@ module.exports = {
   entry: {
     app: [
       'babel-polyfill',
-      './client/index.js'
+      './client/index.jsx'
     ],
     vendor: [
       'react',