Update NEWS and translation for 0.8.1

Update NEWS and translation for 0.8.0

Update NEWS and translation for 0.7.3

Update NEWS and translation for 0.7.2

Update NEWS and translation for 0.7.1

Update NEWS for 0.7.0

Update translation and NEWS for 0.6.1

Update NEWS for 0.6.0

Release ubuntu-tweak 0.5.14

Release ubuntu-tweak 0.5.13