Merge pull request #51 from robparrott/master

starting a single havana build for development purposes.
Merge branch 'master' of github.com:huit/nepho into feature/openstack-havana
pull in OpenStack changes, including adaptations to make CentOS and RHEL work as well as Amazon LInux.
stop trying to stop sendmail ... may not be there.
Merge branch 'master' of github.com:huit/nepho into feature/openstack-havana
open ports and configure via packstack to use external IPs
switch over havana script to look like this one.
Merge branch 'master' of github.com:huit/nepho into feature/openstack-havana
Merge branch 'master' of github.com:huit/nepho into feature/openstack-havana
merge updated openstack work from my own repo.
merge completely stupid, trivial conflicts all due to whitespace
trying to collase releases into one openstack deployment
Merge branch 'feature/extra-params' into feature/openstack-havana
parse JSON to get release
collapsed into one cloudlet for all OpenStack all-in-one
now have a mostly working grizzly.
changes to bring up a working Havana instance. HEAT still not quite right; connection refused.
mostly working Havana at this point, with a small issue with Havana, which seems to come from upstream repos (i.e. not HUIT).
dont update awscli, since the python-request lib breaks cfn-init
OK, now we'll use the git master for packstack to deploy. Everything seems to work, except volume attachment failed.