[TASK] Load group middleware if prefix matches

- Middlewares from groups are now loaded if prefix matches.
- Optimisations.

src/Pecee/SimpleRouter/RouterBase.php

@@ -68,7 +68,7 @@ class RouterBase {
 
             $newPrefixes = $prefixes;
 
-            if($route->getPrefix()) {
+            if($route->getPrefix() && trim($route->getPrefix(), '/') !== '') {
                 array_push($newPrefixes, trim($route->getPrefix(), '/'));
             }
 
@@ -85,6 +85,12 @@ class RouterBase {
 
             if($route instanceof RouterGroup && is_callable($route->getCallback())) {
                 $group = $route;
+
+                // Load middleware on group if route matches
+                if($route->matchRoute($this->request)) {
+                    $route->loadMiddleware($this->request);
+                }
+
                 $route->renderRoute($this->request);
                 $mergedSettings = array_merge($settings, $route->getMergeableSettings());
             }

src/Pecee/SimpleRouter/RouterEntry.php

@@ -93,7 +93,7 @@ abstract class RouterEntry {
      * @return self
      */
     public function setPrefix($prefix) {
-        $this->prefix = '/' . trim($prefix, '/') . '/';
+        $this->prefix = '/' . ltrim($prefix, '/');
         return $this;
     }
 

src/Pecee/SimpleRouter/RouterGroup.php

@@ -7,10 +7,6 @@ use Pecee\Http\Request;
 
 class RouterGroup extends RouterEntry {
 
-    public function __construct() {
-        parent::__construct();
-    }
-
     public function matchDomain(Request $request) {
         if($this->domain !== null) {