Navigation bar buttons customization(1/2)

Navigation bar buttons customization: lock current orientation in edit mode
Freeze current orientation during edit mode.

Conflicts:
	res/values/ras_strings.xml
	res/xml/system_settings.xml

Conflicts:
	res/xml/oct_settings.xml
Navigation bar custom height(2/2)

Conflicts:
	res/values/ras_arrays.xml
	res/values/ras_strings.xml