shorter package names

[Jesus M. Rodriguez]

The backlog ( https://fedorahosted.org/candlepin/wiki/BrainBox ) has
an item #35 like to have shorter package names which look cool i.e.
org.candlepin.  This is quite an easy thing to do but should really be
done before we make our first release. I'm ok with org.candlepin.

Thoughts?

jesus