Adding support for the Percona repository
Merge pull request #5 from twirrim/master

Percona Repository
Merge pull request #8 from bryanwb/master

add recipe for postgresql92 repo
yumrepo

Thanks to Paul Graydon (@twirrim) for adding Percona MySQL repositories.

Thanks to Bryan Berry (@bryanwb) for adding yet another PostgreSQL
repository.  I refactored this to avoid duplicating code, see the
notes below regarding those changes. :)

* Recipe renamed, postgresql9 -> postgresql.
* Added node['repo']['postgresql']['version'] to select version of
  Postgres via attribute, from pgrpms.org repository.
yumrepo v0.16.5

Fix mirrorlist attribute in Dell recipe.
add zeromq repo