Use libprocps3-dev instead of libprocps0-dev.

Closes: #734547
Thanks: David Prévot
Add patch to convert kuid_t/kgid_t to uid_t/gid_t.

Building against kernel 3.12 should succeed now.
Pick another fix from upstream to make vmhgfs build on 3.12
Add Vcs Headers to debian/control.
Updating changelog.