functionality of the existing static BLooper functions (which now call
through to it) in a nicer package. New code should use the global instance
of this (BPrivate::gLooperList) instead of the old BLooper functions (which
are officially deprecated).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@244 a95241bf-73f2-0310-859d-f6bbb57e9c96