Basic Admin listings.
Inline EventActor and EventSeen in full Event change form
AdminEvent Proxy Model and Creating Form.
Add AdminEvent list display.
Tests
Added ability to filter on event expiration status
Styling fixes
Bump patch version number
Merge pull request #7 from Wilduck/admin-site

Admin site
added ability to pass actor pks to create_event
bumped version
Merge pull request #8 from wesleykendall/develop

Actors can be pks when passed to create_event