Don't use a copy of the go test script, use the central version for
consistency with the other repos.
Fixes#125.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
The github path to the tests repo is hard wired in lib.sh.
This makes it difficult to test any test repo WIP, as it ends
up calling back to the main repo.
Fix by using any value already set, and only setting to the main
repo if unset.
Fixes: #95
Signed-off-by: Graham whaley <graham.whaley@intel.com>
