only check links associated with the project type
only check links associated with the project type

When using www-generator.py with --check-all-links we don't want to
look for links that we do not expect to find or want to use. Limit the
URLs checked by the project type in that case.

Change-Id: I7560ec5d57d564730ebe60957153ea63f58002f8
Signed-off-by: Doug Hellmann <0798ebecfb7bc4dfb9d0445c2fa030eb64e1fa1c@doughellmann.com>

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals