simple debugging changes. Does not effect code


git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1681 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
Logging mechanism is working for cut-introduction. If anyone wants to use it, I can send log4j's configuration file.

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1682 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
added binary logical rules and autocontraction to llk parser

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1683 85d21ef8-add0-11de-ae77-5bfb9c5a3f34