Cleaned up alot of icons, fixed others, more still to come but it's late so only these will do
Merge branch 'master' of https://github.com/NitruxSA/flattr-icons
Merge remote-tracking branch 'upstream/master'

Conflicts:
	actions/scalable/system-lock-screen.svg
	actions/scalable/system-log-out.svg
	actions/scalable/system-shutdown.svg
	actions/scalable/system-suspend-hibernate.svg
	actions/scalable/system-suspend.svg
	actions/scalable/system-switch-user.svg
	actions/scalable/tools-report-bug.svg
	actions/scalable/view-list-icons.svg
	actions/scalable/view-list-tree.svg
	actions/scalable/view-preview.svg