[Trusty] cleaned up keyword, use and unmask files
Merge branch 'master' of https://github.com/shiznix/unity-gentoo
[Saucy] removed some masked packages to be able to install Saucy on fresh system
Merge branch 'master' of https://github.com/shiznix/unity-gentoo

Conflicts:
	unity-portage_trusty.pkeywords
[Trusty] version bumps