overdraw
fix overdraw
fix crash
fix link issue
fix link issue
refactor
refactor
fix crash
fix crash
fix crash
refactor
refactor
refactor
beta3
only show official app login option when user has installed sina weibo
Merge branch '0.50' of git://github.com/qii/weiciyuan into 0.50

Conflicts:
	src/org/qii/weiciyuan/ui/main/MainTimeLineActivity.java