Inferno v7.1.0

Inferno core

• Non synthetic events are now using addEventListener API instead of directly assigning event callbacks to html node. This adds support for events which have non standard inline API for example: transitionend
  https://developer.mozilla.org/en-US/docs/Web/Events/transitionend
• Fixes a bug where forwardRef -Component got wrong ref parmeter during patch. #1436
• Adds support for selectIndex -property for select elements. #1425
• All internal dependencies updated and minor code clean up