-----
- Ability to configure extra filters for user lookup using LDAP_AUTH_SEARCH_FILTERS (etianen, Ernest0x).
- Support for Active Directory LDAP servers (etianen, brandonusher).
- Python 2.7 compatibility (NotSqrt).
- Ability to configure relations on loaded user models using LDAP_AUTH_SYNC_USER_RELATIONS (mnach).
- Switched to specifying paths to functions using dotted string paths in settings (mnach).