Add generic Luigi install logic

at least try to do what we can to reduce boilerplate

rattail_fabric2/deploy/luigi/overnight.sh.mako

@@ -0,0 +1,28 @@
+#!/bin/bash
+<%text>############################################################</%text>
+#
+# overnight automation for '${automation}'
+#
+<%text>############################################################</%text>
+
+set -e
+
+DATE=$1
+
+if [ "$1" = "--verbose" ]; then
+    DATE=$2
+    VERBOSE='--verbose'
+else
+    VERBOSE=
+fi
+
+if [ "$DATE" = "" ]; then
+    DATE=`date --date='yesterday' +%Y-%m-%d`
+fi
+
+LUIGI='${envroot}/bin/luigi --logging-conf-file logging.conf'
+export PYTHONPATH=${appdir}
+
+cd ${appdir}/luigi
+
+$LUIGI --module luigitasks.overnight_${automation.lower()} Overnight${automation} --date $DATE