Added popup dialog for sorting tickets
Partially added sort functionality
The OntTime API call to to get a list of ticket sorted by ID or Workflow
Step doesn't seem to work very well. Sorting by created_date_time seems
to be in the same order as sorting by None, so the option is excluded.
Sorting in desc order is currently unimplemented
Merge branch 'master' of git@github.com:f2rf2r/OnTime-Android.git