Merge pull request #8674 from lfzawacki/v2.2.x-release

...utton-html5/imports/api/external-videos/server/methods.js

.../external-videos/server/methods/emitExternalVideoEvent.js

...external-videos/server/methods/initializeExternalVideo.js

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

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

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