Django-social-auth3

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* Merge branch 'master' of github.com:omab/django-social-auth
* Add user to kwargs only if not None (avoid overwriting saved value with None)
* Filter associations QS by user
* Merge pull request 555 from juanpex/patch-1
* Update doc/configuration.rst

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* Merge pull request 554 from sheppard/master
* Merge branch 'master' of github.com:omab/django-social-auth
* Merge branch 'master' of github.com:omab/django-social-auth
* Clean Nonces and Associations commands. Refs 410
* Merge pull request 549 from gfronza/master
* Merge pull request 551 from sbshetty01/master
* Merge pull request 552 from fmr/fix/instagram_missing_fullname
* Adding readability
* Use correct key to retrieve full name
* Added missing removeAssociation method
* Deal with IntegrityError when signing up a django 1.5 custom model user

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* Merge branch 'master' of github.com:omab/django-social-auth

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* Merge pull request 548 from alexey-sveshnikov/patch-1
* Update doc/backends/vkontakte.rst
* Enable state support for Stripe backend. Closes 547
* allowed_to_disconnect should only consider socialauths for the specified user
* Protect disconnect with CSRF (disabled by default). Closes 160
* Merge branch 'master' of github.com:omab/django-social-auth
* Check for next in request.REQUEST for those cases that POST directly to /complete/foobar/ view. Closes 455
* Merge pull request 546 from seansay/douban_refresh_token
* added refresh_token extra_data to douban oauth 2 support
* Merge branch 'token_refresh'
* OAuth2 token refresh support. Closes 492
* Merge pull request 545 from martey/readme-fixes
* Fix Google Groups link.
* Fix spelling error.
* Soundcloud docs and PEP8. Refs 544
* Behance docs. Refs 543
* Merge pull request 543 from estebistec/behance
* Merge pull request 544 from bluszcz/master
* Adds support for SoundCloud
* Add behance authentication backend
* Support unicode characters when cleaning username. Closes 540
* Add setting to make uid field length configurable. Refs 539
* Pass next parameter if the user is not redirected to next
* PEP8
* Merge pull request 537 from 9688/master
* Merge pull request 535 from NorthIsUp/disqusauth
* Merge pull request 538 from Morgul/master
* Removed incorrect use of the assertion expiration as the session expiration.
* Merge branch 'master' of https://github.com/9688/django-social-auth
* Merge branch 'master' of https://github.com/9688/django-social-auth
* Merge branch 'master' of https://github.com/9688/django-social-auth
* Authorization of applications of Facebook Canvas. The FACEBOOK_APP_AUTH setup, if truth then Canvas authorization is added. The FACEBOOK_APP_NAMESPACE setup is added - sets the application name if that isn't specified FACEBOOK_APP_ID is used. For authorization url http://<my host>/complete/facebook/
* removed public key from request as it is not needed
* added disqus.rst
* Authorization of applications of Facebook Canvas. The FACEBOOK_APP_AUTH setup, if truth then Canvas authorization is added. The FACEBOOK_APP_NAMESPACE setup is added - sets the application name if that isn't specified FACEBOOK_APP_ID is used. For authorization url http://<my host>/complete/facebook/
* added disqus
* Fix evernote exceptions import. Closes 531
* Restore UUID length setting. Closes 532
* Mention mailing list and IRC channel on README.rst
* Mention how server datetime might cause errors on some backends. Refs 522
* Restore login url path
* Remove html valid badges
* Updated example app to django 1.4
* Ignore fabfile.py

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* PEP8
* Merge pull request 529 from sbshetty01/master
* 500 507 524 224 Fixed create_user and disconnect for mongoengine
* Merge pull request 528 from barracel/master
* Fix do_auth() call passing extra parameters. Refs 525
* Removed the use of 'or' because it made impossible the use of reverse_lazy in SOCIAL_AUTH_LOGIN_REDIRECT_URL setting
* Link missing backends doc
* Merge branch 'master' of git://github.com/henward0/django-social-auth into henward0
* Added angel.rst to backend/docs
* Restore file ending line
* Merge pull request 527 from bradbeattie/master
* Extending error messages
* PEP8 on angel backend
* Merge branch 'master' of github.com:omab/django-social-auth
* Refactor exception handling/processing. Deprecate exception processors setting in favor of middleware.
* Merge pull request 526 from henward0/master
* Added Angel List support to contrib
* Override create_user() and mimic mongoengine functionality. Refs 524
* Fix create_user call on mongoengine. Closes 524
* Ensure state parameter definion (if required). Closes 483
* Multiple unathorized tokens supported. Closes 521
* Merge pull request 519 from dgouldin/master

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* Adding TripIt backend.
* Link fix
* Stripe backend
* Remove ununsed attribute
* Split auth url and complete process in smaller methods
* Fix exception instances. Refs 518
* Small doc about register-by-access-token feature
* Separate auth process to single method on OAuth
* Small code cleanup on mailru backend
* PEP8. Refs 517
* Merged StockTwits OAuth backend. Closes 517
* Xing backend. Closes 506
* Ignore local settings file
* Make scope available for OAuth1 and OAuth2 backends
* VK backend doc update to reflect settings names. Closes 493
* Disconnect only valid users. Closes 224
* Fixes to keep python2.5 support. Closes 481
* Clean username using default regex from django/mongoengine. Closes 484
* Use case update. Closes 505
* Simplify and apply PEP8 on yammer backends. Refs 514
* Merge pull request 514 from mrmch/master
* Merge pull request 511 from dhendo/master
* Merge pull request 512 from pygeek/patch-1
* Avoid evaluating user if create_user was omitted. Refs 513
* Flag inactive user support
* Update social_auth/backends/pipeline/social.py
* Merged upstream
* Cache openid request instance. Refs 509
* Properly default to None on mongoengine, leave email for django backend (django 1.3 requires email on creating a user). Refs 500, 507
* Removed dummy email, default email to blank
* Simpler user model definition and save only valid fields. Closes 510
* Fix shopify import