- push stack frame before calling the defaultcmd of an ensemble object to make implementation more simple. - simplified EnsembleObject.defaultcmd and EnsembleObject.unknown significantly, scripted support methods are removed. - extended regression test
- nsf::current: new option "methodpath", returns the full name of an ensemble method starting from the ensemble root. - documented functions in nfsStack.c - removed obsolete CallStackGetFrame(), replaced by CallStackGetTopFrame()