Printing data on numpad key press, first version. Settings page for mapping key to actions.

app/Paper/Airly.php

@@ -24,7 +24,7 @@ class Airly
         return $this->stations;
     }
 
-    public function setStations($stations){
+    public function setStations(array $stations){
         $this->stations = $stations;
     }