Updated the testpage to display in Firefox.
Updated the testpage to display in Firefox.

This required declaring the charset and using innerHTML rather than
innerText.

4lejandrito/adapter,Acidburn0zzz/adapter,jan-ivar/adapter,shines/adapter,shines/adapter,harme199497/adapter,xdumaine/adapter,shines/adapter,4lejandrito/adapter,Acidburn0zzz/adapter,webrtc/adapter,jan-ivar/adapter,harme199497/adapter,Zauberstuhl/adapter,Zauberstuhl/adapter,xdumaine/adapter,webrtc/adapter,harme199497/adapter,calebboyd/adapter,calebboyd/adapter,Acidburn0zzz/adapter,4lejandrito/adapter,calebboyd/adapter,Zauberstuhl/adapter