实现城市定位并查询天气功能
1.修正大标签合成后返回后大标签位置发生变化的BUG，原因是在ExtraLayerView类的moveTitleViewToScrollView中 [titleView setCenter:CGPointMake(titleView.center.x, _y)];将titleView错写为self
2.初步添加天气标签功能
Merge branch 'master' of https://github.com/binss/LKTQ1.0 into binss-master
Merge branch 'binss-master'