TODO
Remove DB initializer so we don't drop production tables
Start implementing flight logging
Dynamic table rows for tach entry
Adding flight logs working correctly
Show tach delta for each row

Dynamically add rows even when data was prepopulated
Dynamic running total for tach time
Add row on endtach.focus() for better tab-ordering
Prefill date and start tach on new rows
Expand abbreviated end tach times
Run migrations at start
Tidying
Record ending hobbs/tach hours
TODO
Prefill start hobbs/tach hours
Controller and views for HobbsTimes
Add EngineSerial, EngineTT, and AirframeTT to Create/Edit/Details views
Add GPSExpires to edit/details pages
Add GPS expired notice
Sort by Date in FlightLogs and HobbsTimes