Allow task box to show without starting task.
Update persistent task store when marking complete/incomplete. Fix add to queue functionality which was not adding full GravityTask objects to the queue.
Fix issue with wrong active task ref being updated on materialize workqueue. Caused the task box to not advance properly.
Show task tags
Show projects and tag in task details box
Fix drop() which was calling stopCurrentTask(). Update to use stopTask()
Fix task coloring and move task styling to gr-draggable-task.css