* use sqlite + sqlalchemy as a database backend
* change entries getter
* page filterstate.page_size persistent
* add test for entry.id filter
* fix closing library
* fix tag search, adding field
* add field position
* add fields reordering
* use folder
* take field position into consideration
* fix adding tag
* fix test
* try to catch the correct exception, moron
* dont expunge subtags
* DRY models
* rename LibraryField, add is_default property
* remove field.position unique constraint