Install puppetmaster package

We are currently pinning our Puppet versions
to 3.2.3. This was being undone b/c the
puppetmaster package was not installed. When
it was installed on Debian, it caused the
other packages to be upgraded to whatever
happened to be the latest version.

In my initial tests, Puppet 3.3.0 failed for my
hiera lookups (and did not serve as a drop in
replacement for Puppet 3.2.x)