Protect the TQObject destructor in case gROOT=0. Without this protection, programs without a TApplication crashes when terminating because they access already deleted TClass objects.
Protect the TQObject destructor in case gROOT=0.
Without this protection, programs without a TApplication crashes
when terminating because they access already deleted TClass objects.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@4658 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT