gst 1.0 pulseaudio needs explicit seeding

[Harald Sitter]

http://launchpadlibrarian.net/159397331/phonon-backend-gstreamer_4%3A4.7.0really4.6.3-0ubuntu2_4%3A4.7.1-1ubuntu1.diff.gz

-Depends: ${shlibs:Depends}, ${misc:Depends},
- gstreamer0.10-plugins-base, gstreamer0.10-alsa [linux-any] | gstreamer0.10-pulseaudio
+Depends: phonon-backend-gstreamer-common (= ${binary:Version}),
+ gstreamer0.10-alsa [linux-any] | gstreamer0.10-audiosink,
+ gstreamer0.10-plugins-base,
+ ${misc:Depends},
+ ${shlibs:Depends}

in line with that the pulseaudio plugin needs to be explicitly seeded