* Improvemenets to unit tests.
* Break up modelfactory into multiple files, populate many states.
* Begin testing validation at the unit test level, test relationships.
* Add tests for Asset::availableForCheckout.
* Model factories now generate all needed relationships on demand,
which allows us to unit test with a empty database.
* To faciliate the empty database, we move to using sqlite in memory as
the unit testing database.
* Fix bug with logs of checkouts to non users.
* Fix location finding for assets. Also Fix location show page to show users associated with location. Still need some work to show assets.
* More test and generator improvements
* More unit test fixes. PermissionsTest is borked still.
* More Updates
* Rewrite permissionstest. Check that we have access on the model level rather than via web requests. Also test delete permissions.
* Fix seeders.
* Make the default asset model factory generate assets that are rtd for testing.
* Save progress.
* Rebase tests, fix department unit test, update database for functional tests.
* Update functional and api tests to use new modelfactory signatures.
