WebRTC.MediaHandler: clean/dedupe toggleMuteAudio/toggleMuteVideo methods
WebRTC.MediaHandler: clean/dedupe toggleMuteAudio/toggleMuteVideo methods

Escaux/SIP.js,josephfrazier/SIP.js,Voiceworks/SIP.js,ronlobo/SIP.js,joseph-onsip/SIP.js,onsip/SIP.js,markandrus/SIP.js,onsip/SIP.js