BufferApp OAuth2.

Hello, i submited a pull request in other issue #609, this fix is here.

git ls-files | xargs git update-index --add --chmod=-x
 
git commit -m "Local mode changed" && \
git checkout -- . && \
git rebase -i HEAD~4
 
pick
squash
squash
squash
 
New Commit Message: BufferApp OAuth2.

Thanks.
See: https://bufferapp.com/developers/api/user

This api documentation to social network buffer. This is a return of endpoint with all user information, no have values to realname, nickname and email, but exists only a id key.