Upstream merge of Debian 2.42.1 packaging (no quilt patches)

Source has been updated with changes from git and we use the Debian
packaging data here to match those up.

[endlessm/eos-shell#3276]
I just looked at the sid build deps for tracker. The Build-Depends is actually on `libglib2.0-dev (>= 2.38.0)` and configure.ac matches. The debian binary package gets a version of 2.41.1 because that's what it was built against and that's how the glib debian package declares it's shlibs version. I'm pretty sure tracker will build with no changes against our current glib.