Update outdated links in 'cartridges' directory.

Addresses Bug 928675
Merge pull request #2181 from BanzaiMan/dev/hasari/bz928675

Merged by openshift-bot
Merge pull request #2182 from dobbymoodge/oo-accept-broker

Merged by openshift-bot
<oo-accept-broker> more rhel/fedora reconciliation, cleanup

Modify packages list for check_packages since these are divergent
between rhel and fedora

use oo-ruby instead of inline ruby wrapper, since it already exists
and will be updated independent of this script