Add unit tests for examples

@mfojtik yeah... but I can't see what is the exact problem. Both "v1beta1" and "" versions are registered properly, see:
- https://github.com/openshift/origin/blob/master/pkg/route/api/v1beta1/register.go
- https://github.com/openshift/origin/blob/master/pkg/route/api/register.go 

Maybe @abhgupta can help here?