[JBIDE-16081] Aerogear.hybrid requires org.eclipse.debug.core [3.7.0,3.9.0) but Luna includes 3.9.0
[JBIDE-16132] correct library search path for frameworks

Fixes an issue with the library search paths not being added correctly.
Also adds and improves tests for xcode project files.
Return unknown if a device type can not be guessed