Display dates in consistent format.
Display date in consisent format.
Merge pull request #295 from Mchakravartula/issue#208_date_display

Display dates in consistent format.
Fixes #208
Merge branch 'issue#219_schedule_tasks' of git://github.com/sujeetsr/rockstor-core into sujeetsr-issue#219_schedule_tasks
Update task models for scheduling tasks. Separate task definition, task and
task_type into separate models.
Update task schedule api to exclusively deal with task/event definitions.
clean up deprecated code in replication and sprobes.
Implement task log view for listing history of a recurring task def.
Implement a simple view for task types.
Add enable/disable support to events.
Update task handling cli according to new backend changes.