Foreman divides hostgroups from parent hostgroups by a '/' in the title,
e.g.
foo/green
webtier/green
dbtier/green
secure/webtier/green
while the name of the hostgroup would always be "green".
So in order to not pick a hostgroup at random search by title and if the
hostgroup name contains slashes wire up the correct parent host group so
we inherit it's parameters.
Foreman divides hostgroups from parent hostgroups by a '/' in the title, e.g.
This also includes the changes from
https://github.com/Nosmoht/ansible-module-foreman/pull/15
since they overlap.