Imported Upstream version 0.8.0
Merge tag 'upstream/0.8.0'

Upstream version 0.8.0
- Imported Upstream version 0.8.0
- bump standards to 3.9.6
- Min Qt version 5.3.2
- Min liblxqt-qt5-dev version 0.8.0
- added a lintian-override for startlxqt manpage
- enable compton by default