Documentation for decimater modules, updated decimater, more modules
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@460 fdac6126-5c0c-442c-9429-916003d36597
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@460 fdac6126-5c0c-442c-9429-916003d36597