t:inputHtml should be a composite component for jsf 2.0

t:inputHtml is the best example why composite components are a great idea. We have an unmaintanable renderer that just render html markup and more html markup. It was very difficult to upgrade to kupu 1.4.16 (in fact I used some hacks to do the opposite: convert from html markup to ResponseWriter commands and then update the renderer).

Minor changes are needed to make it a composite component and no side effects are detected in the change.