scripts: Add crontiles.sh

Provide regular restart of uwsgi-tiles as a workaround for
missing dots.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

scripts/crontiles.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+command="systemctl restart uwsgi-tiles"
+
+if crontab -l | grep -q "$command" ; then
+	echo "Cron already set."
+	exit 1
+fi
+
+# Runs at X:14
+(crontab -l 2>/dev/null; echo "14 * * * * $command") | crontab -
+
+echo "Cron set successfully."
+exit 0
+