WHIRR-711. Add security group support for OpenStack.
WHIRR-712. prepare_all_disks.sh should cover xvdX as well as sdX.
WHIRR-546. Add destroy instructions to stdout for all create actions.
WHIRR-709. Bump Hadoop to latest available version at osuosl.
Forgot CHANGES.txt for WHIRR-709.
WHIRR-694. Install puppet from puppetlabs instead of ruby gem. Contributed by Roman Shaposhnik.
WHIRR-705. Provide better integration between parameterized classes and Hiera. Contributed by Roman Shaposhnik.
WHIRR-708. Upgrade jclouds to 1.5.8.
WHIRR-706. Add invalidate method to ComputeCache.
Merge branch 'trunk' into graham-patch-IMAGEHACKS