Bug List :
  ParamVolume constructor- size restrictions on 5-D, 6-D, etc. volumes. 
  Plugin dialog "view" box does not indicate which (if any) output volumes are null.

In the future, I plan to: 
1.	Enable the user to hide the package and show only categories. 
2.	Enable the user to hide/filter based on version (hopefully, within packages)
3.	(before the first major release) reorganize
4. allow the user to set a default file type for internal use (instead of XML default)
5. add an option to the layout tool and proc manager to show the java that executes the maps files
	
