first changes to audio components and services. WIP

...uebutton-html5/imports/api/2.0/audio/client/bridge/sip.js

...utton-html5/imports/api/2.0/audio/client/manager/index.js

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

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

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

.../imports/ui/components/audio/audio-controls/component.jsx

.../imports/ui/components/audio/audio-controls/container.jsx

...l5/imports/ui/components/audio/audio-controls/styles.scss

...tml5/imports/ui/components/audio/audio-menu/component.jsx

...tml5/imports/ui/components/audio/audio-menu/container.jsx

.../imports/ui/components/audio/audio-settings/component.jsx

...rts/ui/components/audio/audio-stream-volume/component.jsx

...ml5/imports/ui/components/audio/mute-button/component.jsx

...ml5/imports/ui/components/audio/mute-button/container.jsx

...html5/imports/ui/components/audio/mute-button/styles.scss

...ui/components/audio/open-audio-modal-button/component.jsx

...ui/components/audio/open-audio-modal-button/container.jsx

...s/ui/components/audio/open-audio-modal-button/styles.scss

bigbluebutton-html5/imports/ui/components/audio/service.js

...uebutton-html5/imports/ui/components/user-list/service.js