Introduced FindJava.cmake (AtlasLCG-00-00-77)

	* Created a FindJava.cmake module to wrap CMake's FindJava.cmake.
	  Now that LCG actually comes with Java included.
	* This is to replace using FindJavaSDK.cmake that is in AtlasCMake.
	  But for the moment that module is also kept alive to allow clients
	  to migrate to this new module at their own pace.
	* Tagging as AtlasLCG-00-00-77

2016-11-29 Attila Krasznahorkay <Attila.Krasznahorkay@cern.ch>
	* Updated FindPythonLibs.cmake and FindPythonInterp.cmake to
	  set PYTHONHOME forcefully. To be able to fix a wrong setting
	  picked up by some base project, in a higher level project.
	* Tagging as AtlasLCG-00-00-76