Merge branch 'patch-1' into 'master'

Fixed "Wrong QuerySQL-Query" in aps_installer

`db->queryOneRecord` does add `LIMIT 0,1` to the end of the statement resulting in a syntax error due to the misplaced semicolon:

`Thu Jan 12 21:41:01 CET 2017 12.01.2017-20:41 - WARNING - Falsche Anfrage / Wrong QuerySQL-Query = SELECT VERSION() as ver; LIMIT 0,1 -> 1064 (You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 0,1' at line 1)`

See merge request !504

Author: Till Brehm

server/lib/classes/aps_installer.inc.php

@@ -306,7 +306,7 @@ private function prepareDatabase($task, $sxe)
 		$db_id = parent::getXPathValue($sxe, '//db:id');
 		if(empty($db_id)) return; // No database needed
 
-		$mysqlver_res = $app->db->queryOneRecord('SELECT VERSION() as ver;');
+		$mysqlver_res = $app->db->queryOneRecord('SELECT VERSION() as ver');
 		$mysqlver = $mysqlver_res['ver'];
 
 		$tmp = $app->db->queryOneRecord("SELECT value FROM aps_instances_settings WHERE name = 'main_database_password' AND instance_id = ?", $task['instance_id']);