Change the roll angle indicator a little bit on the ai
Add signals for turn rate and some of the gauges
Change the names of the Turn Rate properties
Added PFD with Tape for DG, Altimeter, and Airspeed
Added Tape airspeed, altimeter and DG
Change TurnRate Signal name in pyEfis.py
Merge remote-tracking branch 'neil/master'
Move widgets into a MainWindow Class

It's difficult to have multiple screens if all the widgets are top
level objects.  Putting them into a class makes each widget
accessible to the methods within that class.
Fix issue with vsi and tc where the background gets messed up
with a resize
Merge branch 'master' into hsi_pixmap
Fix some resizing issues with the hsi (pixmap version)