some fixes to projection calculation for lksk, more testcases for projections

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1886 85d21ef8-add0-11de-ae77-5bfb9c5a3f34
removing testcase from shlk which breaks the build

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1887 85d21ef8-add0-11de-ae77-5bfb9c5a3f34