[x11-wm/awesome] version bump to 3.5, sync with Portage
[www-client/firefox] Bump Firefox ebuild to version 18.0.1

Bump the Firefox ebuild to correspond to the latest version.

Signed-off-by: Mitch Harder <mitch.harder@sabayonlinux.org>
[www-client/chromium] Update Chromium ebuild to latest stable.

Signed-off-by: Mitch Harder <mitch.harder@sabayonlinux.org>