Separate disconnect overlay

The variables in gradle.properties can be overridden on command line like: -Pversion=1.

Reduce the impact of aui, aui-experimental, and jQuery-Impromptu on t…

Update api.md

Fix videoConferenceJoined and videoConferenceLeft event names

Adds the --host argument to the jicofo command, as suggested by exs on irc.

Add 'isNetworkFailure' argument to PageReloadOverlay

There was functionality added to lib-jitsi-meet that depends on
particular version of Strophe. It could be possibly broken without
testing the update.

Fix disabled Welcome page broken with the introduction of React

The React-based rewrite looks whether there's a room name (in the
window's location) in order to choose between WelcomePage and
Conference. But app.js expects Conference to be rendered before it
builds a room name if WelcomePage is disabled and there's no room name.
A quick and dirty workaround is to render Conference within WelcomePage
so that the rendered result closely resembles index.html before the
React-based rewrite.

Log more details on page reload

Log collector

Fix the UI when anonymous domain auth is in use

feat: Enables by default tab sharing for chrome.

Update api.md. There is still work to be done, cause handling parameters in executeCommand is not currently correct and needs fixing. But for now displayname is the only command that requires a parameter.