Development

- Removed unused exception from PHP-docs.
- Fixed types not same as declared.
- Fixed issues with reg-ex and php-unit tests.
- Removed unnecessary type casting.
- Declared functions as static (better scoping + performance).
- Moved `\is_callable($callback) === false` as the execution costs less than previous in `Router.php`.
- Changed `ob_get_contents` to `ob_get_clean`.
- Added type hints to methods.

src/Pecee/SimpleRouter/Handlers/DebugEventHandler.php

@@ -16,7 +16,7 @@ class DebugEventHandler implements IEventHandler
 
     public function __construct()
     {
-        $this->callback = function (EventArgument $argument) {
+        $this->callback = static function (EventArgument $argument) {
             // todo: log in database
         };
     }