V4.0.4: Add DB table check in update script (prevents some installation errors)

Makefile

 BASE=ordernumber
 PLUGINTYPE=vmshopper
-VERSION=4.0.3
+VERSION=4.0.4
 
 PLUGINFILES=$(BASE).php ordernumber_helper_joomla.php $(BASE).script.php $(BASE).xml index.html library/
 

ordernumber.xml

@@ -7,7 +7,7 @@
     <authorUrl>http://www.open-tools.net/</authorUrl>
     <copyright>Copyright (C) 2012-2015 Reinhold Kainhofer. All rights reserved.</copyright>
     <license>http://www.gnu.org/licenses/gpl-3.0.html GNU/GPLv3</license>
-    <version>4.0.3</version>
+    <version>4.0.4</version>
     <releaseDate>2015-05-23</releaseDate>
     <releaseType>Minor update</releaseType>
     <downloadUrl>http://open-tools.net/virtuemart/advanced-ordernumbers.html</downloadUrl>