Merged r9881:9917 from jcorgan/deb-wip into trunk. Updates Debian/Ubuntu packaging...

Merged r9881:9917 from jcorgan/deb-wip into trunk.  Updates Debian/Ubuntu packaging system to build trunk code on Ubuntu 8.10.

Several new trunk components still need debs created.

Impact on non-packaging code:

* Renamed libgr_audio_alsa.so to libgnuradio-audio-alsa.so

* Renamed libusrp_inband.so to libusrp-inband.so

* Added PYTHON_CHECK_MODULE to build system to simplify Python dependency verification

Packaging code updates:

* Updated build-depends and package dependencies to be current with trunk

* Added package for libgruel and libgruel-dev

* Renamed library packages to use simplified names, removing the 0 or 0c2a suffix. This may not follow Debian policy, but we can revisit this if we ever go into official Debian or Ubuntu.

* Remove gr-comedi from packaging

* Restructured sections to eliminate 'contrib'.  Since we're not official Debian, we don't need to deal with the sdcc-nf issue.

* Consolidated usrp firmware packages into corresponding main packages (same as previous).

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9918 221aa14e-8319-0410-a670-987f0aec2ac5