Started standardizing video and screenshare RPC messages

Video now uses redis message routing

Also forcing h264-only video

Also added correct stop logic to the video process

Added chrome extension ID to HTML5 screenshare call

 Conflicts:
	bigbluebutton-html5/imports/startup/client/base.jsx
	bigbluebutton-html5/imports/ui/components/actions-bar/actions-dropdown/component.jsx
	bigbluebutton-html5/imports/ui/components/actions-bar/component.jsx
	bigbluebutton-html5/imports/ui/components/app/container.jsx
	bigbluebutton-html5/imports/ui/components/screenshare/service.js
	bigbluebutton-html5/imports/ui/components/video-dock/component.jsx
	bigbluebutton-html5/imports/ui/components/video-dock/container.jsx
	bigbluebutton-html5/private/locales/en.json bigbluebutton-html5/server/main.js

This is temporary while we fix the server-side message routing

Also made cam button respond to those config values

Fix presentation context menu when switching locale

Fixes settings service

settings service was missing a `||`

Improvements to the page move events

Fixed a bug with passing props to the polling container

Set initial locale to be the browser one

The action bar stop button is temporary

Proper HTML5 screenshare viewer handling

Changed Firefox screensharing constraints to pick windows and limited max resolution to HD

Merge branch 'locale-browser-default' of https://github.com/gcampes/bigbluebutton into locale-browser-default

Attempt to release mic when not needed for webrtc

Fix issue that prevented end meeting button to appear

[HTML 5] Rounds upload percentage, localize messages in presentation uploader

React 16 and packages update

Add portal with HTML5 *AND* Flash entry point