move ab-pull2refresh to support-v4-refresh
refactors for the last commit.

add android' s apache liscense about a support class.
refactors for the timeline' s line and avatar.
refactors for the news count.
refactors for api.
fix image bug for the zhihu item layout.
bug fixed.

1. fix tweet layout cannot reply or retweet.
2. fix the comment line' s user' s profile image too long.
refactors for the main layout.
refactors for the main layout' s drawer.

add some icons indicat the list item.
refactors for the relationship layout.

add more larger avatar.
refactors for the zhihu layout item.

remove quick-return layout.
fix first fantasy cannot share bug.

just share it, no need waiting it to be write done.
fix zhihu items load more bug.
change app' s logo.

have fun!
v0.9 preview.

add some words, you know!
fix different screen image width not match error.
add multiple tweet pics in the timeline.

todo: maybe the gallery dialog need shortness...
fix bugs from last commit.
now u can see mutilple pics in tweet detail layout
v0.9 done.