Fixed a bug in hol/replacements not dealing with positions of HOLVars. Added a wrapper for FOLExpressions, for dealing with positions.

git-svn-id: http://gapt.googlecode.com/svn/trunk@2077 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
added replacements wrapper for FOLExpressions

git-svn-id: http://gapt.googlecode.com/svn/trunk@2078 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
Major bug fix: it emerged that editing replacement object getAllPositions, resulted in an infinitely running testcase.
Feature: Added support for partial weighted MaxSAT instances, due to implementation of an interface for qmaxsat

git-svn-id: http://gapt.googlecode.com/svn/trunk@2079 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
Merge remote-tracking branch 'svn/trunk'