pager title alpha changed when page switch.
Merge branch 'Beta1.5' of https://github.com/lejoying/im into Beta1.5

Conflicts:
	androidApp/res/layout/view_title_share.xml
	androidApp/res/layout/view_title_square.xml
Merge branch 'Beta1.5' of https://github.com/lejoying/im into Beta1.5
Merge branch 'Beta1.5' of https://github.com/lejoying/im into Beta1.5
MainView class has been split into 5 subView class.