fix for ios5
fix bug
fix share bug
fix buy_url null for weixin
adjust commentview
add Localizable
1.modify social share sheet; 2.Localizable 3.add AdService
add MoreCommentListView
adjust adview
fix a bug
add category for article
update sectionbar image
add hideTabBar() and showTabBar() for some view
update some ui
add BuyWebViewController
update
update ui
mv NSLog to PPDebug
mv NSLog to PPDebug
update ui