Prepare for tuskar packages
Install python-ironicclient from koji instead of delorean
Fix $ELEMENTS_PATH syntax
no longer use set-instack-root element
Query os-refresh-config for the base dir
Add workaround for tuskar/ironic packages
Update $LKG for tripleo-image-elements and patches
Make package installs for tuskar/tuskar-ui the default, but overrideable
Update python-netaddr from rdo juno early on