Added

• #70 adds Zend\Expressive\Helper\Template\TemplateVariableContainer, which
  can be used to aggregate template variables within a pipeline, and as a
  stateless alternative to using TemplateRendererInterface::addDefaultParam().
  Please review the README.me for more details.

• #70 adds Zend\Expressive\Helper\Template\TemplateVariableContainerMiddleware,
  which will register an empty TemplateVariableContainer under that class's name
  as a request attribute, if one is not already present.

• #70 adds Zend\Expressive\Helper\Template\RouteTemplateVariableMiddleware,
  which will register the return value of any discovered Zend\Expressive\Router\RouteResult
  request attribute as the "route" variable of a TemplateVariableContainer
  request attribute, when present. This middleware can be used in place of the
  UrlHelperMiddleware, as long as you always provide the route name to the
  UrlHelper.

Changed

• Nothing.

Deprecated

• Nothing.

Removed

• Nothing.

Fixed

• Nothing.