Django-friendship

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*Released July 23rd, 2016*

- Moved template tag to assignment_tag to avoid Django 1.9 error

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*Released July 1st, 2016*

- Support non-integer primary keys in cache keys
- Remove support for Django 1.4

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*Released November 11th, 2015*

- Raise AlreadyFriendError if creating request when users are already friends
- PEP8 cleanups

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*Released July 12th, 2015*

- Updated Django 1.7 and 1.8 compatibility
- Signal related bug fixes
- Python 3 compatibility

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*Released September 22nd, 2014*

- Updated test runner for 1.7 compatibility
- Fixed security issue where we were not checking the owner of a FriendRequest during accept and
cancelation
- Added optional 'message' kwarg to FriendshipManager.add_friend() so it is easier to set the
optional message field on FriendshipRequests

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*Released May 6th, 2014*

- Added Django 1.7 compatibility.
- Fixed caching issue with sent_requests.
- Added unrejected_requests() and unrejected_request_count() manager methods.