v3.3.0

This is a maintenance release that includes a few fixes.

New features:

• A new public function restoreScroll is available to programmatically restore the scroll state to a given object - thanks @nathaniel-daniel

Fixes:

• Restoring scroll state works correctly now even when the page was scrolled on the X axis only - thanks @Jan-Kruse
• The WrapOptions type is now exported - thanks @notiv-nt
• Remove 'undefined' from history.replaceState() optional URL parameter for improved IE11 compatibility - thanks @dipscom