Merge pull request #8374 from pedrobmarin/bbb-multiple-webcams

bigbluebutton-html5/imports/api/audio/client/bridge/base.js

...uebutton-html5/imports/api/audio/client/bridge/kurento.js

bigbluebutton-html5/imports/api/audio/client/bridge/sip.js

...orts/api/users-settings/server/methods/addUserSettings.js

...pi/video-streams/server/handlers/userSharedHtml5Webcam.js

.../video-streams/server/handlers/userUnsharedHtml5Webcam.js

...ebutton-html5/imports/api/video-streams/server/helpers.js

...mports/api/video-streams/server/modifiers/sharedWebcam.js

...orts/api/video-streams/server/modifiers/unsharedWebcam.js

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

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

...luebutton-html5/imports/ui/components/media/component.jsx

...luebutton-html5/imports/ui/components/media/container.jsx

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

...rts/ui/components/nav-bar/settings-dropdown/component.jsx

...n-html5/imports/ui/components/video-preview/component.jsx

...n-html5/imports/ui/components/video-preview/container.jsx

...-html5/imports/ui/components/video-provider/component.jsx

...-html5/imports/ui/components/video-provider/container.jsx

...ton-html5/imports/ui/components/video-provider/service.js