Scrolling works on all browsers but IE 8, Mobile Safari
Scrolling works on IE 8
Scrolling works on Mobile Safari
Frame.reset() resets scroll position
addEventListener() shim now in shim.js
document.head shim moved to shim.js
Compatibility note re: Mobile Safari scroll container
INTEGRATE: Frame.scroll() and Frame.getRawScrollPosition()

* dev:
  Compatibility note re: Mobile Safari scroll container
  document.head shim moved to shim.js
  addEventListener() shim now in shim.js
  Frame.reset() resets scroll position
  Scrolling works on Mobile Safari
  Scrolling works on IE 8
  Scrolling works on all browsers but IE 8, Mobile Safari