(CC) clean and add LKASSERTs in dlgAirspaceColours
Fix airspace configuration dialog, scroll bar overlapping text, resized to full screen in all resolutions.
	modified:   ../Data/Dialogs/dlgAirspace.xml
	modified:   ../Data/Dialogs/dlgAirspaceColours.xml
	modified:   ../Data/Dialogs/dlgAirspaceColours_L.xml
	modified:   ../Data/Dialogs/dlgAirspace_L.xml
	modified:   Dialogs/dlgAirspace.cpp
	modified:   Dialogs/dlgAirspaceColours.cpp
(CC) dlgAirspace.cpp and add LKASSERTs
	modified:   Dialogs/dlgAirspace.cpp
Fix dialog Airspace selection in configuration, scrollbar overlapping text
	modified:   ../../Data/Dialogs/dlgAirspaceSelect.xml
	modified:   ../../Data/Dialogs/dlgAirspaceSelect_L.xml
	modified:   dlgAirspaceSelect.cpp