separate base class
unify all weibo request
special forward for sina
fix forward interface pattern
fix short url
resolve merge confilict with 'dev'
Merge branch 'short_url' into sina-upgrade
move url shortening service to SinaWeiboBase
use unified weibo_request to short URLs
code clean
better tuned special forward: comply to web forward format
fault tolerance for forward
add contributor
snsgui: use clear code for NewChannel dialog
Merge pull request #73 from Kelvin-Zhong/master

update dependency versions
Merge branch 'master' into dev
Merge branch 'master' of github.com:hupili/snsapi
Merge branch 'master' into dev
Merge branch 'tkinter' of git://github.com/iptux/snsapi into iptux-tkinter
v0.4.4