Merge pull request #51 from kellyschrock/master

Load From File message
Changes so UASQuickView item selection dialog now uses a list for selecting item categories to add/remove from the view
Updates to the layout of Install Firmware view. 
Provision for new reboot button.
Some improvements to error handling.
Minor visual improvements to the Radio Calibration Screen
Merge remote-tracking branch 'upstream/master'
Param Write UI confirmation

Add logic to provide a visual confirmation of parameters
written to the UAV when the "Write" button is clicked.

Also, display a count of parameter differences between
the current settings and a just-loaded file.

Also changed the highlight color in the grid slightly to
make it easier to see the values when using the indoor
mission style theme.
Merge branch 'param_write_ui_confirm' of https://github.com/kellyschrock/apm_planner into param_write_ui_confirm