- switched system jump/kill-data update cronjob from XML API to ESI

- use internal DEBUG level for MySQL ERRORMODE
- increased MySQL version 5.6 => 5.7
- fixed bug in System auto search form element (select2)
- code cleanup

app/main/controller/api/system.php

@@ -130,13 +130,9 @@ class System extends Controller\AccessController {
      * @return array
      */
     public function getSystems(){
-
         $ccpDB = $this->getDB('CCP');
-
         $query = $this->_getQuery();
-
         $rows = $ccpDB->exec($query, null, 60 * 60 * 24);
-
         // format result
         $mapper = new Mapper\CcpSystemsMapper($rows);
 
@@ -457,23 +453,3 @@ class System extends Controller\AccessController {
     }
 }
 
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