Add option to build without COLLADA

We're not terribly useful right now built this way, but the option is there.

Signed-off-by: Casey Dahlin <cdahlin@redhat.com>
Set bug email to devel mailing list

Signed-off-by: Casey Dahlin <cdahlin@redhat.com>
Change collada to collada_dom in configuration

Signed-off-by: Casey Dahlin <cdahlin@redhat.com>