Add a helper script to unlock ownClouds admin features

tools/owncloud-unlockadmin.sh

+#!/bin/bash
+
+source /etc/mailinabox.conf # load global vars
+
+ADMIN=$(sqlite3 $STORAGE_ROOT/mail/users.sqlite "SELECT email FROM users WHERE privileges = 'admin' ORDER BY id ASC LIMIT 1")
+test -z "$1" || ADMIN=$1 
+
+echo I am going to unlock admin features for $ADMIN.
+echo You can provide another user to unlock as the first argument of this script.
+echo 
+echo WARNING: you could break mail-in-a-box when fiddling around with owncloud\'s admin interface
+echo If in doubt, press CTRL-C to cancel.
+echo 
+echo Press enter to continue.
+read
+
+sqlite3 $STORAGE_ROOT/owncloud/owncloud.db "INSERT OR IGNORE INTO oc_group_user VALUES ('admin', '$ADMIN')" && echo Done.