updated docs and changelog

doc/changelog.rst

@@ -4,6 +4,7 @@ Changelog
 1.2.2 (2014-XX-XX)
 ------------------
 
+* added support for the $app argument in application middlewares (to make it consistent with route middlewares)
 * added form.types to the Form provider
 
 1.2.1 (2014-07-01)

doc/middlewares.rst

@@ -20,7 +20,7 @@ Before Middleware
 A *before* application middleware allows you to tweak the Request before the
 controller is executed::
 
-    $app->before(function (Request $request) {
+    $app->before(function (Request $request, Application $app) {
         // ...
     });
 
@@ -30,7 +30,7 @@ If you want your middleware to be run even if an exception is thrown early on
 (on a 404 or 403 error for instance), then, you need to register it as an
 early event::
 
-    $app->before(function (Request $request) {
+    $app->before(function (Request $request, Application $app) {
         // ...
     }, Application::EARLY_EVENT);