avoid printing out module path; more desc about storage root
v0.6.3
prepare .rst for pypi use:

   * pandoc --from=markdown --to=rst --output=README.rst README.md
release v0.6.5 with .rst formatted readme
add header support for _http_get, _http_post
file upload via multipart form
some docstring
use _http_get to expand short urls
fix bug which SNSBase keep last response if it fails the new _http_*
port urllib(2) in sina to _http_*
sina update add pic=XXX(bin) to upload picture
renren photo upload
tencent publish status with pic
Merge branch 'master' into dev
Merge branch 'master' of github.com:fqj1994/snsapi into dev
fix CI. add requests