changed llk instantiate axiom rules to have no cuts

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1821 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
Fixes a bug in the treatment of labels in the SKskc substitution algorithm.


git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1822 85d21ef8-add0-11de-ae77-5bfb9c5a3f34