use consul-template watcher API as of 2cbf5d1524
use consul-template watcher API as of 2cbf5d1524

Signed-off-by: Daniel, Dao Quang Minh <a76de0896a8a598dcb47d7c85ee190739e85f617@gmail.com>

x-cray/envconsul,kalistace/envconsul,msabramo/envconsul,hashicorp/envconsul,bounceexchange/envconsul,hashicorp/envconsul,x-cray/envconsul,daxko/envconsul,mehulsbhatt/envconsul,bounceexchange/envconsul,kalistace/envconsul