Add more UNDO action classes and update some of the existing classes.
More UNDO action classes
Add UNDO classes for global quantity entity and modify relevant classes
for their integration.
Add more UNDO classes on global quantity.
Add UNDO classes on Global Quantity and Compartment entities. Modify
classes for their integration into CAPASI. Update some some existing
UNDO classes.
Add and update UNDO classes.
Update UNDO type change action on Species entity.
Add UNDO class for species initial value.
Fixed Bug 2095. Added icon files to source package.