move renderer to ui folder

src/app.js

@@ -21,7 +21,7 @@ var Browserfiles = require('./app/files/browser-files')
 var SharedFolder = require('./app/files/shared-folder')
 var Config = require('./app/config')
 var Editor = require('./app/editor')
-var Renderer = require('./app/renderer')
+var Renderer = require('./app/ui/renderer')
 var Compiler = require('./app/compiler/compiler')
 var ExecutionContext = require('./app/execution-context')
 var Debugger = require('./app/debugger')

src/app/renderer.js → src/app/ui/renderer.js

@@ -2,7 +2,7 @@
 
 var $ = require('jquery')
 
-var utils = require('./utils')
+var utils = require('../utils')
 
 /**
  * After refactor, the renderer is only used to render error/warning