Merge pull request #70 from zyuce/master

对商品详情的界面进行调整， Search部分进行完善
fix search scope view.(replace search scope by cell.)
Merge pull request #71 from zhou5211/master

fix search scope view.(replace search scope by cell.)
Merge pull request #72 from zyuce/master

添加商品详情的评论功能
修复商品板块的ui问题
调整登录页面ui