WHIRR-660. Provide useful error message/exception if empty instance templates
WHIRR-634. Update private IP host file entry when required by AUTO_HOSTNAME_SUFFIX. Contributed by Graham Gear.
WHIRR-661. Upgrade to Hadoop 1.0.3. Contributed by Steve Loughran.
WHIRR-681. Enhance puppet service with an ability to export cluster topology to the puppet code. Contributed by Roman Shaposhnik.
WHIRR-711. Add security group support for OpenStack.