Simplifying the CMake configuration of the package a little further (xAODMissingET-00-02-09)

	* After some more checking, it turned out that this package should
	  not explicitly link against any ROOT libraries after all. The linking
	  error was resolved by using a fixed version of xAODJet instead.
	* Removed the unnecessary dependence on ROOT from the
	  ut_edmTest test as well.
	* Tagging as xAODMissingET-00-02-09

2016-06-22 Attila Krasznahorkay <Attila.Krasznahorkay@cern.ch>
	* Updated CMakeLists.txt to link the components of the package
	  against all the libraries that they use. To be able to enable
	  -Wl,--no-undefined in the nightlies.
	* The CMake configuration now builds both unit tests of the package,
	  and also the executable that was written for RootCore originally.
	* For the latter to work, the executable's source file had to
	  be modified a bit. Taking out everything from it that was not
	  necessary.
	* Tagging as xAODMissingET-00-02-08


Former-commit-id: 98fec1f7a6bd48bc88610f7dc882a4dc324ec26e