Redesign SideNav & implement add repo func

browser/main/HomePage/SideNav/Repository.js

@@ -0,0 +1,75 @@
+import React, { PropTypes } from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './Repository.styl'
+
+class Repository extends React.Component {
+  render () {
+    let { repository } = this.props
+    let folderElements = repository.folders.map((folder) => {
+      return (
+        <div
+          key={folder.name}
+          styleName='folder'
+        >
+          <div styleName='folder-label'>
+            <i className='fa fa-cube'/> {folder.name}
+          </div>
+          <div styleName='folder-control'>
+            <button styleName='folder-control-button'>
+              <i className='fa fa-pencil'/>
+            </button>
+            <button styleName='folder-control-button'>
+              <i className='fa fa-trash'/>
+            </button>
+          </div>
+        </div>
+      )
+    })
+
+    return (
+      <div
+        className='Repository'
+        styleName='root'
+      >
+        <div styleName='header'>
+          <div styleName='header-name'>
+            <i className='fa fa-archive'/> {repository.name}
+          </div>
+
+          <div styleName='header-control'>
+            <button styleName='header-control-button'
+            >
+              <i className='fa fa-unlink'/>
+            </button>
+            <button styleName='header-control-button'
+            >
+              <i className='fa fa-pencil'/>
+            </button>
+            <button styleName='header-control-button'
+            >
+              <i className='fa fa-angle-down'/>
+            </button>
+          </div>
+        </div>
+
+        {folderElements}
+
+        <button styleName='newFolderButton'
+        >
+          <i className='fa fa-plus'/> New Folder
+        </button>
+      </div>
+    )
+  }
+}
+
+Repository.propTypes = {
+  repository: PropTypes.shape({
+    name: PropTypes.string,
+    folders: PropTypes.arrayOf(PropTypes.shape({
+      name: PropTypes.string
+    }))
+  })
+}
+
+export default CSSModules(Repository, styles)