New isLooped parameter on TickedQueueItem constructor
Adding tickLength as a parameter on TickedObject constructor
Ensuring queue order on items with the same time and priority

We will now consider that if two items are inserted with the same time
and with the same priority, the second one in the comparison will be
considered the larger one.

Also:

- Fixed Timing test
- TestUnPausePriority wasn't marked as a test