rtorrent 0.9.2/0.9.3/0.9.4 xbian package ready for tests

[CurlyMo]

- If a control file settings is empty, just remove it.
- Please just create a single package that works properly. Either 0.9.2, 0.9.3 or 0.9.4 and just name it xbian-package-rtorrent. Memory leaks are not an option.
- Check the postrm files of the other xbian package.

The quote i make was to show you how package are created in the official repository.