New feature : use shortest url with urlFormat path

Dev: this replace array('survey/index', 'sid' => $survey->sid, 'lang' => App()->lang->langcode) by /$sid/lang/language
Dev: same behaviour than 2.0 or 1.92 with modrewrite=1
Dev: maybe some other default rules to add : actually surveyurl + statistics_ur + optout url (maybe partially)
Dev: need more testing ? urlFormat get not changed

application/config/routes.php

@@ -18,6 +18,7 @@
 $route['<_sid:\d+>/lang-<_lang:\w+[-\w]+>/*'] = "survey/index/sid/<_sid>/lang/<_lang>";
 $route['<_sid:\d+>/tk-<_token:\w+>/*'] = "survey/index/sid/<_sid>/token/<_token>";
 $route['<_sid:\d+>/*'] = "survey/index/sid/<_sid>";
+$route['<sid:\d+>/*'] = 'survey/index';
 
 //Admin Routes
 $route['admin/index'] = "admin";
@@ -28,12 +29,16 @@
 $route['admin/labels/<_action:\w+>'] = "admin/labels/index/<_action>";
 $route['admin/labels/<_action:\w+>/<_lid:\d+>'] = "admin/labels/index/<_action>/<_lid>";
 
-$route['<_controller:\w+>/<_action:\w+>'] = '<_controller>/<_action>';
-
 //Expression Manager tests
 $route['admin/expressions'] = "admin/expressions/index";
 
 //optout
 $route['optout/<_sid:\d+>/(:any)/(:any)'] = "optout/index/<_sid>/$2/$3";
+$route['optout/<surveyid:\d+>/*'] = "optout/index";
+
+//Public statitics
+$route['statistics_user/<surveyid:\d+>/*'] = "statistics_user/action";
+
+$route['<_controller:\w+>/<_action:\w+>'] = '<_controller>/<_action>';
 
-return $route;
+return $route;