Several Vkontakte Bugs:

1)Mapping doesnot work due to API violation
2)Forget to read photo field from profile
Security issue: login as user with socialId === null when something goes wrong

* https://github.com/hwi/HWIOAuthBundle/issues/438
Yahoo sign request fix

* everything is fine now according to: http://oauth.googlecode.com/svn/code/javascript/example/signature.html
Prevent SessionUnavailableException when returns back from service.
[TwitterResourceOwner] Fix link to API

Details at: https://dev.twitter.com/discussions/24239
Fix: #467, #466, #465
added support for the use_forward config option