Bug#800536: Depends on gstreamer 0.10

[Moritz Muehlenhoff]

Source: signon-ui
Severity: serious

signon-ui build-depends on libgstreamer-plugins-base0.10-dev, but
gstreamer 0.10 is scheduled for removal:
https://lists.debian.org/debian-devel/2015/05/msg00335.html

Cheers,
        Moritz