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/Http/Input/InputHandler.php

@@ -73,7 +73,7 @@ class InputHandler
     {
         $list = [];
 
-        foreach ((array)$_FILES as $key => $value) {
+        foreach ($_FILES as $key => $value) {
 
             // Handle array input
             if (\is_array($value['name']) === false) {