bump version
Add simple thumbnailing.
Add more complex thumbnail via a second request.
Fix NPE in volley stream fetcher
Add BitmapRequest as ImagePresenter replacement.
Remove image presenters
Make ImageManager final
Pull out request builders into separate classes
Avoid unnecessary model loader factory allocations
Refactor/clenaup ModelLoaderFactory
Add image and video load for generic models.

Also cleans up some comments.
Make the tests pass
Add support for requiring ARGB_8888 formats
Add support for drawable and animation objects
Check resource ids > 0 rather than != 0
Set placeholders for null models.
Fix loading items in the wrong order in preloader
Fix prioritization of thumbnails