0.1.3: Merge pull request #54 from akatsoulas/validate-token

Improve token validation.

0.1.2: Merge pull request #53 from johngian/43-logout

Add helper view to logout users.

0.1.1: Merge pull request #48 from akatsoulas/filter-users-method

Add a filter_users method in authentication class.

0.1: Merge pull request #42 from johngian/fix-callback-view

Fix overriding callback class.