The HTML5 'input' event does not work correctly on all input elements
in IE 11. There are equivalent events that the UI can use on IE.
Instead of remembering this and checking for IE every time the 'input'
event is needed, let the polyfill translate the event type.
Change-Id: I23258a5c6a0bd37e946214380ad07949f3ee7f88
Joey Parrish