ember-user-activity

Thanks @rwjblue for some sanity bug fixes! :)

This is an exciting update because it introduces some great performance improvements to the initially naive approach used by EUA. Specifically:

• Scroll events are now determined through requestAnimationFrame, so that scrolling animation is not blocked on JavaScript execution
• All events are individually throttled, so that we don't have a firehose of events being fired when they happen in quick succession
• mousemove has been removed as a default enabled event (see https://github.com/elwayman02/ember-user-activity/issues/16)

Thanks to @runspired, @rwjblue, @mixonic & Twitch Engineering for giving feedback to improve the above approaches! This is only the beginning; there is always more work to be done. :)