Tweak test-docker-py feature

- move docker/docker-py clone to the Dockerfile
- put "integration test daemon startup" code in a separate file for both scripts to source
- add new test-docker-py Makefile target
- include "python-websocket" package in Dockerfile for running the tests

Signed-off-by: Andrew "Tianon" Page <admwiggin@gmail.com>

project/make.sh

@@ -50,6 +50,7 @@ DEFAULT_BUNDLES=(
 	test-unit
 	test-integration
 	test-integration-cli
+	test-docker-py
 
 	dynbinary
 	dyntest-unit