Merge branch 'v2.2.x-release' of github.com:bigbluebutton/bigbluebutton into merging

bigbluebutton-config/bin/bbb-conf

bigbluebutton-config/cron.daily/bigbluebutton

bigbluebutton-config/web/index.html

bigbluebutton-html5/client/main.html

bigbluebutton-html5/client/main.jsx

.../imports/api/group-chat-msg/server/handlers/userTyping.js

...ton-html5/imports/api/group-chat-msg/server/publishers.js

bigbluebutton-html5/imports/startup/client/base.jsx

bigbluebutton-html5/imports/ui/components/app/styles.scss

...imports/ui/components/authenticated-handler/component.jsx

...tton-html5/imports/ui/components/chat/alert/container.jsx

bigbluebutton-html5/imports/ui/components/chat/container.jsx

...ml5/imports/ui/components/chat/message-form/component.jsx

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

bigbluebutton-html5/package.json

bigbluebutton-html5/private/locales/ar.json

bigbluebutton-html5/private/locales/bg_BG.json

bigbluebutton-html5/private/locales/cs_CZ.json

bigbluebutton-html5/private/locales/da.json

bigbluebutton-html5/private/locales/de.json