Instead of using a copy of the deploy file, use Shipyard's deploy as it
could (and does) diverge.
This also obviates the need for a copy of `Dockerfile.dapper` which
can now be taken directly from Shipyard.
Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>
Instead of redefining the dapper file here, download it from Shiyard
Also use the BASE_BRANCH env variable for the dapper file
Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>