[feature/albumfactory] Update the album_type column to string
[feature/albumfactory] Add services for factory and types
[feature/albumfactory] Add album factory with unit tests
[feature/albumfactory] Add base class and category implementation
[feature/albumfactory] Add some unit tests for the album base class
[feature/albumfactory] Prevent fatal error for abstract in implement interface

Can't inherit abstract function
phpbb_ext_gallery_core_album_interface::get_type_id()
(previously declared abstract in phpbb_ext_gallery_core_album_base) in
album/base.php for php < 5.3.23
[feature/albumfactory] Add tests for submit function
Add ext.php to make it actually work
Merge remote-tracking branch 'nickvergessen/feature/albumfactory' into develop