Apparently these are calculated differently (sqlite function is in utc, datetime is in local), and I couldn't figure out how to retrieve the tiome back into local. Since this is a single user application without a concern for time drift on the server, this should work just as well.
Removed the FIT_CHANGED binding from FitItem - this was causing very odd issues when the object was destroyed (navigating to another "stage") such as the Fit Changed event for that fit no longer firing (or at least seemingly so)
To fix this, simply look at the active fit during FitItem.Refresh()
Also creates a new query to get a list of items from the DB, although it's not used (was gonna use it, decided against it, but didn't want to delete the code - could prove handy later)
