YUI Touch Events and Abstractions

The event-touch module extends the whitelist of DOM events to include the native touch and gesture events and adds relevant information to event facades. The event-move module adds a set of abstract events that adapt to the client environment to handle either touch or mouse input. The event-flick module adds a "flick" event on top of the gesture abstraction layer to capture a user flicking an element with mouse or finger. The event-gestures module is a rollup of these three, but will potentially roll in more gesture based events in the future.