fix: adding openssh cookbook for FreeIPA

1. FreeIPA is dependent on the openssh cookbook.

Squashed commit of the following:

commit 846ebfb97e7820654c99232925c9b002de5f3a03
Author: Rachel McCuistion <rachel@infochimps.com>
Date:   Mon Mar 17 15:42:48 2014 -0500

    adding openssh cookbook which is a dependency for FreeIPA

    Change-Id: Icd250bb89eadbb925cbe68517e21382029b42c76

Change-Id: Id69c2440e91d2814ec2389df40c57dc5742ddb0a