GF-58674: Add History API's popstate window event to Enyo
Enyo-DCO-1.1-Signed-off-by: Jason Robitaille <jason.robitaille@lge.com>
Merge pull request #635 from enyojs/GF-58674-jasonrobitaille

GF-58674: Add History API's popstate window event to Enyo

Reviewed-By: Ben Combee (ben.combee@lge.com)