Add annotation of api.js function.
Merge pull request #172 from wjmjimmie/br#21+jimmie

清理框架代码 #21 Add annotation of api.js function.  jimmie -> huyuanzhe
Merge branch 'master' into data2

Conflicts:
	nodewebkit/backend/api.js
	nodewebkit/backend/apiHttpHandle.js
	nodewebkit/backend/apiLocalHandle.js
	nodewebkit/backend/requestHandlers.js
Merge pull request #175 from wjmjimmie/data2

清理框架代码 #21 将master的修改merge到Data2中 jimmie -> wangfeng