removing find_by_task_id method from TaskStatusManager and updating it's usages and unit tests
Merge branch 'mongoengine-taskstatus' into remove-taskstatus-manager
removing create_task_status from task status manager and updating it's usages and tests
Merge branch 'mongoengine-taskstatus' into remove-taskstatus-manager
Moving a few more functions from task_status_manager to TaskStatus model
Merge branch 'mongoengine-taskstatus' into remove-taskstatus-manager
Got rid of as_dict() method for TaskStatus and added a task status serializer to be used in the controller layer
removing find_by_criteria and replacing with custom queryset queries and updating client side for the format change
removing update_task_status and TaskStatusManager and replacing update with mongoengine queries
renaming test_task_status_manager to test_task_status.py
renaming test_task_status_manager to test_task_status.py
Merge pull request #1 from skarmark/remove-taskstatus-manager

Removing task status manager and moving some functionality to TaskStatus model and replacing other with direct mongoengine queries.