(packaging) Remove Ubuntu Oneiric, add Raring

Oneiric is EOL, and we are no longer building for it. This commit removes the
Oneiric target from the build list for puppet. We also now build for Raring
Ringtail, so we add this to targets.

Signed-off-by: Moses Mendoza <moses@puppetlabs.com>
(cherry picked from commit 8a767186ae220e2f3fd37edf8282448e929f6365)