Merge pull request #18 from Neeke/master

fixed login api
Merge pull request #19 from Neeke/master

更新添加相册接口
Merge pull request #20 from Neeke/master

更新添加相册接口
允许图片描述为空
做图集页面搞定
Merge pull request #11 from lackhurt/master

做图集搞定