Update Docker make file

- Include PIP proxies.
- Add docker compose targets.

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

docker/rootfs/usr/local/bin/run_celery.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# Use -A and not --app. Both are the same but behave differently
+# -A can be located before the command while --app cannot.
+su mayan -c "${MAYAN_PYTHON_BIN_DIR}celery -A mayan $@"