New Gardenhouse Gentoo repo

Today I moved all ebuilds that were previously contained in the core Gardenhouse repository into their own Gentoo repository. This allows Gardenhouse components to be updated without requiring a new core Gardenhouse release.

Additionally with the seperation of the ebuilds, components such as Rootloader and Stem are now more easily accessible for non-Gardenhouse users, simply add the Gentoo repository with the following command

root#eselect repository add gardenhouse git git://git.pinkro.se/Rose/gardenhouse/ebuilds.git