Development

- Changed router so it supports both string and object as exception handlers.
- Added `Router::error($callback)` method to `Router` class (issue #238).
- Fixed issues calling `getController` and `getMethod` when callback is an object (issue #239).
- Updated documentation to reflect new changes.
- Added `addExceptionHandler` to `IGroupRoute` interface and `RouteGroup` class.
- Other minor bugfixes and optimisations.

src/Pecee/Http/Request.php

@@ -8,7 +8,7 @@ use Pecee\SimpleRouter\SimpleRouter;
 
 class Request
 {
-    protected $data = [];
+    private $data = [];
     protected $headers;
     protected $host;
     protected $uri;