2008-02-17: Release 3.1

- Resolve ST-34.  Super group loading was not using template lexer
  (<...> or $...$) according to subclass. Updated group loader interface.
- Improved error message for "template not found"
- $first(list).prop$ was not allowed.  Fixed and added a unit test.

2007-12-03: Release 3.1b1

- Initial beta release of V3.1.
- Lots of API breaking changes, please read the wiki for more information:
  <http://www.antlr.org/wiki/display/ST/Python+notes>