add dbmanager
add fmdb
change version to 2.4
add post loader from db
fix single post loader
add unread hint for post list
add unread hint
change unread to circel icon
fix warning for xcode5.1
delete post cache when refresh
post read count for normal model
remove toooold post read count
mark post as read in post list
optimize for ip4
add optimize config
optimize post for ip4
optimize for old device
fix content height for ipad
fix content label padding
parse post links