Adding latest version of unfolding CRAB configuration files.
Adding changes from the following commits in HEAD version (relating to unfolding) manually:
in chronological order
6cfadd2ec652bc3c0c1cd13e92d652b3107f30e7
3994dc46ba1355de746e4547eaa9cc5a63fec870
29efdc755949e623de875b3239eaca58adc77b9a
02f020e504a89385df504cfccb549242e0c22662
46baa4316c9b2b4fe71d224210053b5aa9508658
8c5da42569d3864b18ff091a8e71a782d47eb91b
Adding changes from the following commit in HEAD version manually:
72e0767e4a41b293b270ca588354396ce194739f
Adding CRAB configuration file for central TTJets sample with storePDFweights=1.