updated version number

Author: NinaHerrmann

version.php

@@ -24,7 +24,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 
-$plugin->version   = 2018240400;     // The current plugin version (Date: YYYYMMDDXX).
+$plugin->version   = 2018050400;     // The current plugin version (Date: YYYYMMDDXX).
 $plugin->requires  = 2015111000;     // Requires this Moodle version.
 $plugin->component = 'block_groups'; // Full name of the plugin (used for diagnostics).
 $plugin->release = 'v3.5-r1';