[OPTIMISATIONS] Optimised code and removed unused references

src/Pecee/SimpleRouter/RouterResource.php

@@ -109,10 +109,12 @@ class RouterResource extends RouterEntry {
 
     /**
      * @param string $url
+     * @return static
      */
     public function setUrl($url) {
         $url = rtrim($url, '/') . '/';
         $this->url = $url;
+        return $this;
     }
 
     /**
@@ -124,9 +126,11 @@ class RouterResource extends RouterEntry {
 
     /**
      * @param string $controller
+     * @return static
      */
     public function setController($controller) {
         $this->controller = $controller;
+        return $this;
     }
 
 }