Changed authorization url
Add note to CHANGELOG file
Fix test for Vkontakte
Add notes about required anonymous access to login/connect routes

Fix #333
Add better detection of oauth errors returned from resource owners
Merge pull request #352 from stloyd/bugfix/oauth_error

Add better detection of oauth errors returned from resource owners
Prepare release 0.2.7
Merge remote-tracking branch '0.2'
Add missing note about Dropbox changes