- Added docking information for "Structures" ( e.g. Citadels)

- Added system environment var check to /setup page
- Added new ESI scope "read_structures.v1"

app/main/controller/controller.php

@@ -600,6 +600,7 @@ class Controller {
      * @return bool
      */
     public function showError(\Base $f3){
+
         if(!headers_sent()){
             // collect error info -------------------------------------------------------------------------------------
             $error = $this->getErrorObject(