Fix tests


git-svn-id: file:///srv/repos/svn-packages/svn@217730 eb2447ed-0c53-47e4-bac8-5bc4a241df78
Remove libpulse from optional dependencies

We assume that it is installed on systems that use PulseAudio.


git-svn-id: file:///srv/repos/svn-packages/svn@217731 eb2447ed-0c53-47e4-bac8-5bc4a241df78