git-svn-id: http://picoc.googlecode.com/svn/trunk@555 21eae674-98b7-11dd-bd71-f92a316d2d60
git-svn-id: http://picoc.googlecode.com/svn/trunk@551 21eae674-98b7-11dd-bd71-f92a316d2d60
Also moved most internal header stuff to the new header interpreter.h. git-svn-id: http://picoc.googlecode.com/svn/trunk@549 21eae674-98b7-11dd-bd71-f92a316d2d60