Create usable IPC directory for ZeroMQ

By default, the zeromq driver looks for
/var/run/openstack which needs to be created and
given the right permissions.

It is easier and just as safe in the case of devstack
to just use mktemp to establish a temporary working
directory.

Change-Id: I4cec33e49d2b042a244420fb40d83d476e4971cd
ZeroMQ driver to default to redis matchmaker

Switching to the redis matchmaker.

The localhost matchmaker does not presently work.
Also, the localhost matchmaker could not work for
multi-host setups.

Change-Id: I81a26b9af78328e360a18b87371c619e194365d2
Add h-api to suggested ENABLED_SERVICES for Heat

Currently lib/heat says:

    To enable, add the following to localrc
    ENABLED_SERVICES+=,heat,h-api-cfn,h-api-cw,h-eng

Once the stack is up, `heat list` fails because the API server
isn't running.

This commit adds h-api to that list.
Also make sure h-api is killed in stop_heat().

Change-Id: I2e818bb343680b3778f9277c23c766f784d28887
Merge "Add h-api to suggested ENABLED_SERVICES for Heat"
Merge "Create usable IPC directory for ZeroMQ"
Merge "ZeroMQ driver to default to redis matchmaker"
Merge remote-tracking branch 'm_src_repo/citrix-fixes' into build-temp