Added java_cup.jar back.  Needed to bootstrap cup.
Added java_cup.jar back.  Needed to bootstrap cup.

blue-systems-group/project.maybe.polyglot,liujed/polyglot-eclipse,xcv58/polyglot,blue-systems-group/project.maybe.polyglot,blue-systems-group/project.maybe.polyglot,blue-systems-group/project.maybe.polyglot,xcv58/polyglot,xcv58/polyglot,liujed/polyglot-eclipse,liujed/polyglot-eclipse,xcv58/polyglot,liujed/polyglot-eclipse