add support for specifying openstack-origin in charm conf
add worker-multiplier=1 for glance
add neutron-openvswitch
bump memory requirements
merge with master, fix conflicts
the openvswitch charm doesn't have openstack-origin config value
Rework CHARM_CONFIG into a function for ease of testing, add tests for subordinate charm deployment
Merge branch 'master' into juno-support to get single-install improvements
add openstack_release_min to control when to deploy certain charms
add neutron-api charm
handle None value for Units dict in subordinate charms
Merge branch 'master' into juno-support
fix pyflakes/pep8

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
add security group configs to neutron-api and nova-cloud-controller
Merge pull request #299 from Ubuntu-Solutions-Engineering/juno-support

Juno support :dancers: