Update gateway to 0.13.9 for swarm
Update gateway to 0.13.9 for swarm

Signed-off-by: Vivek Singh <0309897457bdbaf8410ee5929728bb5df02fed57@yahoo.in>

alexellis/faas,alexellis/faas,alexellis/faas,rgee0/faas,rgee0/faas,openfaas/faas,rgee0/faas,rgee0/faas,rgee0/faas,alexellis/faas,rgee0/faas,openfaas/faas,rgee0/faas,alexellis/faas,alexellis/faas,alexellis/faas,rgee0/faas,rgee0/faas,openfaas/faas,alexellis/faas,alexellis/faas,rgee0/faas