Fix swift_ring_check cron job

 * turn into cron_d resource
 * remove old templated /etc/cron.d file

partial fix for #149
Fix mailto on storage nodes

Cron jobs weren't sending mail to swiftops.

Noticed as part of issue #149
bad rebase.  oops
Merge pull request #150 from rpedde-rcbops/issue-149

Merged automatically by jenkins after successful build test