default.xci: Reordered "Config" menu

Put System, Plane, Devices and Files on the second page to be more visible.
The less used Vega Vario, Logger and Airspace items are moved to the third
page.
default.xci: Renamed "Raw Logger" to "NMEA Logger"
default.xci: Removed Setup/Settings prefixes

The user is in the "Config" menu so it should be pretty obvious that these
buttons open setup/config dialogs.
default.xci: Added line break to "File Manager" label

The label fits better in the button
dlgConfiguration: remove Devices

This panel is redundant. It's accessed via the devices dialog.
FlyingComputer.cpp: increase stationary threshhold to 2 minutes

This way the auto logger won't stop inadvertently for paragliders
LoggerConfigPanel.cpp: remove short IGC file name option

always use long file name
MapItemList: show target if AAT

if OZ has a target (e.g. AAT), display the target