CORE-395 Fix how object's due dates are computed

obj.end_date is the date the final task will complete. That is why we
need to check each of the tasks to see if the object is overdue
CORE-390 Error on modal closed before loaded
Whitespace fixes
CORE-228 Close zero tabs
Display ONE TIME instead of ONE_TIME in Workflow info
Merge pull request #1935 from reciprocity/hotfix/CORE-390

CORE-390 Script error appears if close Edit Task modal before it is opened
Merge pull request #1934 from reciprocity/hotfix/fix-how-object-overdue-is-computed

CORE-395 Fix how object's due dates are computed
Merge pull request #1939 from reciprocity/hotfix/one-time-frequency-display

Display ONE TIME instead of ONE_TIME in Workflow info
Merge pull request #1936 from reciprocity/hotfix/CORE-228

CORE-228 Close zero tabs
Use Task Queue for deleting objects
Use makeDestroy instead of destroy
Merge pull request #1946 from reciprocity/hotfix/delete-task-queue

Hotfix/delete task queue
Merge pull request #1947 from reciprocity/release/0.9.0

Release/0.9.0