Merge pull request #286 from LeadSift/master

Add support for OAuth2 providers that are yet to support 'state'.
Added czech language due to missing this one. First version. Please, contact me if any mistakes.
Typos, author
Merge pull request #287 from dolnex/master

Added support of czech language
Added Q-dance to showcase
Moving to Vanilla JS (closes #291)
Base template now renders messages (closes #292)
Replace user.email with helper function (closes #294)
Merge pull request #295 from pjreddie/master

Replace user.email with helper function (closes #294)
Make connecting accounts explicit (closes #282)
Test suite update for new process param
Added Facebook logout
Check for a custom username-field when generating unique usernames

Respect USER_MODEL_USERNAME_FIELD when generating unique usernames in
the allauth/utils.py generate_unique_username function
Removed hardcodedness with respect to first/last_name
SocialAccountTests run with a custom user model (closes #300)
Extra check for user model fields (related to #300)
Moving FB JS out of the HTML (issue #301)
signup email initial = account_verified_email

since we are going through the trouble of collecting the verified email
lets pre-populate the signup form.

Another thought would be to validate that the email provided matched
account_verified_email.  This would indicate that the user wants allauth
to disreguard the account_verified_email and just send a validation
email for the new provided address and make that the primary.
Merge pull request #303 from arctelix/penner-master

signup email initial = account_verified_email
KeyError: 'socialaccount_state' (closes #305)