Minor update with bug fixes for OS X 10.11 El Capitan.
- IMPORTANT: Fixed bug when changing sheets which started on OS X El Capitan.
- FIXED: Bug when editing a task that reverts the calendar after it was set.
- FIXED: Bugs with row numbering.
- FIXED: Add card button on bottom bar is working.
- FIXED: Crash when deleting list items then changing sheets.