export $RCFILE and $ANSWERSFILE
Add imagefactory stuff
update imagefactory stuff
Add initial rhel-7-undercloud-source json file

This needs a bunch of cleanup to remove references to fedora, but
it adds the necessary rdo repo so we can install openvswitch on
rhel7 underclouds.  For the moment that should be enough to enable
undercloud source installs with no hackery.
Set instack vm hostname

It can be confusing if you have multiple machines named 'localhost'
update imagefactory stuff
Allow overriding JSONFILE in instack-install-undercloud-source

We need to be able to point at a rhel7-specific one
Add deploy ramdisk build
Remove DEPLOY_NAME from tdl's, it's superfulous
Don't set the instack vm hostname

It breaks rabbitmq to have the hostname changed.  Would still be
nice to do this, but it will take more than this one line so just
reverting the change for now.
Copy sample answers file

The instack-vm element is expecting an instack.answers file in /tmp