Add Debian build instructions.
First attempt at using dh-golang for building.
Export GOPKG and remove the useless override for dh_auto_build.
Remove now-useless install file.
The variable is called DH_GOPKG.
Change the license for everything under Debian to MIT to comply with
the rest of the package.
Fill in the long description.
Add libldap2-dev to the dependencies.
Add ITP bug to the changelog.
Remove an useless variable.
Intriguingly enough, we don't build any architecture dependent
binaries here, although this is cgo.
Add a watch file.