[Makefile] Add debian pkg tarball build

Fixes #418

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>
Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
[debian/changelog] update changelog to new release

Syncs up the version within the changelog to the latest
release.

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
[apt] Fix failing apt-cache policy details

Split add_cmd_output to use suggest_filename since the
output of apt-cache policy for each installed package
would create an incredibly long filename.

Fixes #415.

Signed-off-by: Louis Bouchard <louis.bouchard@canonical.com>