Merge pull request #8098 from antobinary/external-video-player

...ernal-videos/server/methods/startWatchingExternalVideo.js

...ternal-videos/server/methods/stopWatchingExternalVideo.js

...button-html5/imports/ui/components/actions-bar/service.js

...imports/ui/components/external-video-player/component.jsx

...imports/ui/components/external-video-player/container.jsx

...nents/external-video-player/custom-players/arc-player.jsx

...s/ui/components/external-video-player/modal/component.jsx

...s/ui/components/external-video-player/modal/container.jsx

...rts/ui/components/external-video-player/modal/styles.scss

...l5/imports/ui/components/external-video-player/service.js

...5/imports/ui/components/external-video-player/styles.scss

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

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

bigbluebutton-html5/package-lock.json

bigbluebutton-html5/package.json

bigbluebutton-html5/private/locales/en.json