Merge pull request #7303 from capilkey/legacy-browser-support-2

bigbluebutton-html5/.eslintignore

bigbluebutton-html5/client/legacy.jsx

bigbluebutton-html5/client/main.html

...uebutton-html5/imports/ui/components/legacy/component.jsx

bigbluebutton-html5/imports/ui/components/legacy/styles.css

bigbluebutton-html5/package.json

bigbluebutton-html5/private/locales/en.json

bigbluebutton-html5/public/compatibility/adapter.js

bigbluebutton-html5/public/compatibility/bowser.js

...luebutton-html5/public/compatibility/kurento-extension.js

bigbluebutton-html5/public/compatibility/kurento-utils.js

bigbluebutton-html5/public/compatibility/sip.js

bigbluebutton-html5/server/main.js