Allow keys > 16 digits for /api/add/.
Add D_TIME constant for plain dates.
Fix order of serializer so that specific case happen before general.
Make get_ds_and_validate return error strings on error.
Add keys when adding a datastream.
Add test database setting.
Modify tests.py client post requests to work with django 1.5.
Remove print statement.
Refactor graph time controls. Incomplete.
Refactor graph time controls.
Merge branch 'development'