Updating docker dev workflow

* Moving to new docker compose file format
* Adding some things that will be needed for python dependencies

tools/docker-compose/Dockerfile-sync

@@ -0,0 +1,10 @@
+FROM ubuntu:16.04
+
+RUN PACKAGES="\
+        rsync \
+        lsyncd \
+    " && \
+    apt-get update && \
+    apt-get install -y $PACKAGES && \
+    apt-get autoremove --purge -y && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*