Add a recipe for ack-menu and its dependencies

I wrote recipes for ack-menu and I have a problem.  One of the dependency (splitter.el) is in a repository called chumpy-windows which contains three independent libraries.

In MEPLA, it is in different package.  See:
- https://github.com/milkypostman/melpa/pull/435
- http://melpa.milkbox.net/

Choices I can think of:

1. Keep it as-is.
2. Put splitter.el in a separated package.  The problem is that other files in the same repository will be in load-path.
3. Fetch splitter.el using http access.

Opinions?