open a v0.2 branch

Signed-off-by: matthewgao <matthewgao@gmail.com>
fix up weibo timeout issue

Signed-off-by: matthewgao <matthewgao@gmail.com>
update the structure

Signed-off-by: matthewgao <matthewgao@gmail.com>
tighten the code

Signed-off-by: matthewgao <matthewgao@gmail.com>
Signed-off-by: matthewgao <matthewgao@gmail.com>
add pic
v0.2 update
update master
update v0.2
confict fixed
fix confict