Fix create breakout room missing some users

...utton-html5/imports/api/breakouts/server/eventHandlers.js

.../imports/api/breakouts/server/handlers/breakoutStarted.js

...ports/api/breakouts/server/handlers/joinedUsersChanged.js

...components/actions-bar/create-breakout-room/component.jsx

...components/actions-bar/create-breakout-room/container.jsx

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

...list-content/user-participants/user-options/component.jsx

...list-content/user-participants/user-options/container.jsx