Modify Invoker to fix startup error (#146)

Pass `--id` flag introduced in apache/incubator-openwhisk#3894

Fixes #145
diff --git a/docker-compose/docker-compose.yml b/docker-compose/docker-compose.yml
index 9a0d288..3006fa0 100644
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -79,7 +79,7 @@
   # WHISK INVOKER AGENT
   invoker:
     image: ${DOCKER_OW_IMAGE_PREFIX:-openwhisk}/invoker
-    command: /bin/sh -c "exec /init.sh 0 >> /logs/invoker-local_logs.log 2>&1"
+    command: /bin/sh -c "exec /init.sh --id 0 >> /logs/invoker-local_logs.log 2>&1"
     privileged: true
     pid: "host"
     userns_mode: "host"