new_symbol rule working on example REL024+1. two todos remaining: (1) the replaced term might contain free variables (not contained in the rest of the clause). to make sure they are not captured later, work with a variant of the contained variables (2) for each introduced constant, the proof contains a superfluous paramod with an instance of the reflexivity axiom. not of high priority for release because it does not turn up in the expansion tree.

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1430 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
added readme and license

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1431 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
small change to readme

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1432 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
release of prooftool 1.4 and cli 1.4

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1433 85d21ef8-add0-11de-ae77-5bfb9c5a3f34