Bugfixes and optimisations.

- Fix for __invoke methods (issue: #429)
- Fixed not being able to parse body of PUT request.
- BaseCsrfVerifier expects the field name to be "csrf-token" (issue: #432)
- Minor optimisations

src/Pecee/SimpleRouter/Route/Route.php

@@ -109,7 +109,7 @@ abstract class Route implements IRoute
         $router->debug('Loading class %s', $className);
         $class = $router->getClassLoader()->loadClass($className);
 
-        if (count($controller) === 1) {
+        if (\count($controller) === 1) {
             $controller[1] = '__invoke';
         }
 

src/Pecee/SimpleRouter/Router.php

@@ -188,7 +188,7 @@ class Router
             $this->routeStack = [];
 
             /* Route any routes added to the stack */
-            $this->processRoutes($stack, $route);
+            $this->processRoutes($stack, ($route instanceof IGroupRoute) ? $route : null);
         }
     }