Fix the ordering of stripping and transliteration

This was kind of a silly way to do this. First stripping everything that is not default, and then using iconv transliteration. At that point there would be no special chars left. This explains why i always lose my French éàç characters in the slug :)

Fixes #8

Helper/Slugifier.php

@@ -17,10 +17,6 @@ class Slugifier
      */
     public static function slugify($text, $default = 'n-a')
     {
-
-        $text = preg_replace('#[^\\pL\d\/]+#u', '-', $text); // replace non letter or digits by -
-        $text = trim($text, '-'); //trim
-
         // transliterate
         if (function_exists('iconv')) {
             $previouslocale = setlocale(LC_CTYPE, 0);
@@ -29,6 +25,9 @@ public static function slugify($text, $default = 'n-a')
             setlocale(LC_CTYPE, $previouslocale);
         }
 
+        $text = preg_replace('#[^\\pL\d\/]+#u', '-', $text); // replace non letter or digits by -
+        $text = trim($text, '-'); //trim
+
         $text = strtolower($text); // lowercase
         $text = preg_replace('#[^-\w\/]+#', '', $text); // remove unwanted characters