test, integration: Add an integration test framework

This adds an initial implementation of an integration test framework for
writing more complicated tests. In particular this also makes some small
additions to the mgmt core so that testing is easier.

test/test-integration.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# this file exists to that bash completion for test names works
+
+echo running "$0" "$@"
+
+#ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )"	# dir!
+ROOT=$(dirname "${BASH_SOURCE}")/..
+cd "${ROOT}"
+. test/util.sh
+
+# this test is handled as a special `go test` test
+exec test/test-gotest.sh --integration $@