adds support for playing media programmatically without requiring user interaction first.
Fixes issues with inline playback and user interaction settings. WKWebView requires a configuration file passed to it. I tried using the old method but didn't seem to work whereas this does.
Merge branch 'master' of git://github.com/johnanthonyevans/Frameless into johnanthonyevans-master

Conflicts:
	Frameless/ViewController.swift