Add order_by + tests
Fix comments and short code
Merge branch 'master' of git://github.com/ttyS15/django-celery-rpc

Conflicts:
	celery_rpc/tasks.py
	celery_rpc/tests/test_tasks.py
rename testRevertOrdering  -> testReverseOrdering
Merge pull request #16 from dtrst/master

Add order_by