Cleanup overlay

- Remove obsolete gnome-extra/gnome-shell-extensions-noa11y
- Fix license for dev-vcs/gitflow
- Add SublimeText license
Add QA tests with repoman
Fix wercker.yml
Give up with cache management for now
Provide a .editorconfig file to stop messing with indent style
Add metadata files
Fix QA notice

- Convert leading space to tabs
- Update Gentoo copyrights
- Fix manifests
QA: Quote variables in app-editors/atom
QA: Remove duplicate blank line in app-editors/sublime-text
QA: Shorten description for dev-vcs/gitflow
QA: Fix deprecated python inheritence
Merge pull request #26 from aegypius/add-qa-testing

Add QA testing with repoman
Bump dev-util/atom-shell and app-editors/atom versions
Update minimum atom-shell requirement for atom
Update WMClass for Atom
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app-editors/atom/atom-0.135.0.ebuild
	app-editors/atom/atom-9999.ebuild
	dev-util/atom-shell/atom-shell-0.17.2.ebuild
	dev-util/atom-shell/atom-shell-9999.ebuild