Performance Optimizations

[sodiumjoe]

Some low-hanging fruit for perf gains that came out of our weekly meeting on 5/26:

• add a generic shouldComponentUpdate in lucid.createClass that:
  • reference checks this.props
  • has a global opt-out flag
• lucid global reflow event
  • single global poll that checks for potential reflows and notifies subscribers
  • dynamic polling interval?
  • requestAnimationFrame
• modify components that iterate to create children to use an instance method for event handling instead of partials to reduce function creation