Merge pull request #1 from jacobzelek/master

Catch up with Jacob
Always request qt4-default on later distributions, no matter what is installed. Fixes Issue #8
Add release note for Issue #8
Issue #9: Detect is pulseaudio is installed. If not, install it as GQRX requires it.
Reboot after if it was installed to get it up.
An auto reboot flag is included but not on by default; help updated accordingly
Merge pull request #10 from realflash/master

Lubuntu support