Update Kiwi configuration for openSUSE Crowbar image

I've updated Adam's Crowbar 2.0 appliance at
http://susestudio.com/a/E5zfDp/crowbar-2-0 to openSUSE 12.3 and exported
the Kiwi configuration.

The image can't be built yet due to some packaging issues, but that
should be resolved soon. Then I will trigger new builds in Studio and
publish them to Gallery.

- Remove Kiwi configuration for openSUSE 12.2 since it's not cool
  anymore.
- Add openSUSE 12.3 Kiwi configuration straight from Kiwi export.
- Ignore image/ in git