add a startup wrapper script for cfgtool

diff --git a/gtk2_ardour/arcfg b/gtk2_ardour/arcfg
new file mode 100755 (executable)
index 0000000..7177b7d
--- /dev/null
+++ b/gtk2_ardour/arcfg
@@ -0,0 +1,4 @@
+#!/bin/sh
+TOP=`dirname "$0"`/..
+. $TOP/build/gtk2_ardour/ardev_common_waf.sh
+exec $TOP/build/cfgtool/cfgtool "$@"