Merge pull request #3497 from mmarangoni/html5-stun-audio

...mports/ui/components/actions-bar/audio-menu/component.jsx

...ton-html5/imports/ui/components/actions-bar/component.jsx

...ports/ui/components/actions-bar/mute-button/component.jsx

...ports/ui/components/actions-bar/mute-button/container.jsx

...utton-html5/imports/ui/components/actions-bar/styles.scss

...ports/ui/components/audio-modal/listen-only/component.jsx

...ton-html5/imports/ui/components/enter-audio/component.jsx

...ton-html5/imports/ui/components/enter-audio/container.jsx