qingy 0.5.0

- This new major version finally is able to work-around all issues
between DirectFB and 2.6 kernels. But make sure to use a
kernel >= 2.6.8 and never, ever attempt a 2.6.7 one as it is
likely to lock up your machine completely.
You have been warned ;-)
- High memory usage issues are now solved, now qingy
should use ~2.5 MB of RAM when user is logged in
(instead of ~40MB!)...
- Remove support for the '--black-screen-workaround'
cmd line arg, as it is no longer needed.