Merge pull request #122 from tomwilkie/112-pid-host

Don't do the hostproc dance, use --pid=host

docker/run-probe

@@ -1,3 +1,3 @@
 #!/bin/sh
 
-exec /home/weave/probe -proc.root=/hostproc
+exec /home/weave/probe

scope

@@ -128,8 +128,7 @@ case "$COMMAND" in
 			WEAVESCOPE_DNS_ARGS="--dns $DOCKER_BRIDGE_IP --searchpath $DOMAINNAME"
 		fi
 
-		CONTAINER=$(docker run --privileged -d --name=$CONTAINER_NAME --net=host \
-			-v /proc:/hostproc \
+		CONTAINER=$(docker run --privileged -d --name=$CONTAINER_NAME --net=host --pid=host \
 			-v /var/run/docker.sock:/var/run/docker.sock \
 			$WEAVESCOPE_DOCKER_ARGS $SCOPE_IMAGE $WEAVESCOPE_DNS_ARGS "$@")