add adub's testcase for lut/lut2

git-svn-id: http://vapoursynth.googlecode.com/svn/trunk@448 f9120d27-2007-6f97-8312-0f4ebfa7710f
capitalization

git-svn-id: http://vapoursynth.googlecode.com/svn/trunk@449 f9120d27-2007-6f97-8312-0f4ebfa7710f
Fix lut bug using adub's fix

git-svn-id: http://vapoursynth.googlecode.com/svn/trunk@450 f9120d27-2007-6f97-8312-0f4ebfa7710f
apply documentation patch in issue #43

git-svn-id: http://vapoursynth.googlecode.com/svn/trunk@451 f9120d27-2007-6f97-8312-0f4ebfa7710f