CVS commit by jriddell: added undo and redo to the right click menu M +24 -73 listpopupmenu.cpp 1.6 M +1 -0 listpopupmenu.h 1.4 M +8 -0 uml.cpp 1.15 M +10 -0 uml.h 1.5 M +4 -2 umlview.cpp 1.21