Added Module.apply(String) to construct a TargetRef.


git-svn-id: http://sbuild.tototec.de/svn/sbuild/trunk@437 024a02f7-42f7-40fc-9f58-65666d1f2450
Added more scaladoc.


git-svn-id: http://sbuild.tototec.de/svn/sbuild/trunk@438 024a02f7-42f7-40fc-9f58-65666d1f2450