TaskDataAccess now implements AutoCloseable
Correction of TaskDataAccess exception due to closing when SnackBar was present and tabs were fast switched
Detection of initial scroll value to toggle arrows visibility (but there is still an issue with right arrow)
Long press does not drag task lists anymore
Create task list button is themed
Arrows are shown in the scrollable tabs
Task form is now inside a scrollview (needs testing)
Total cycles is now correctly reset when there are no more tasks
