Added Session authentication to DRF Browsable API. Application API supports Bookmarks and Thresholds.
Merge branch 'abyssinian-nightjar' of https://github.com/iPlantCollaborativeOpenSource/atmosphere into abyssinian-nightjar
Fix problem where deleted projects show up.
	modified:   api/project.py
Fix problem where monitoring users that don't exist on an atmosphere application creates an exception.
	modified:   service/tasks/allocation.py
Merge branch 'abyssinian-nightjar' of github.com:iPlantCollaborativeOpenSource/atmosphere