Merge pull request #9 from kitbs/patch-1

Trim slash off URL and relative paths to avoid //

src/Favicon/Favicon.php

@@ -204,7 +204,7 @@ private function getFavicon($url, $checkDefault = true) {
 
         // Make sure the favicon is an absolute URL.
         if( $favicon && filter_var($favicon, FILTER_VALIDATE_URL) === false ) {
-            $favicon = $url . '/' . $favicon;
+            $favicon = rtrim($url, '/') . '/' . ltrim($favicon, '/');
         }
 
         // Sometimes people lie, so check the status.