Some random Gentoo ebuilds

To add the repo to layman's database, to the following:

1. Add https://raw.github.com/ddemidov/ebuilds/master/overlay.xml
to the "overlays" section of /etc/layman/layman.cfg.

2. Fetch the remote list of database using "layman -f"

3. Add the repo to layman using "layman -a ddemidov"