[#23] Build script now starts postgres database as well

Makefile

@@ -36,6 +36,7 @@ run:
 # As a workaround, we just have a stop command that stops the container.
 stop:
 	@ docker stop -t 2 fej
+	@ docker stop fej_db
 .PHONY: stop
 
 # This attaches to the running container, essentially giving the same result as
@@ -44,6 +45,11 @@ logs:
 	@ docker logs -f fej
 .PHONY: logs
 
+# This just starts up a shell inside the fej container
+sh:
+	@ docker exec -it fej sh
+.PHONY: sh
+
 # Builds the debug version, and runs the tests (but doesn't detach).
 test:
 	@ ./build -m dev -a run -l -- test --no-fail-fast