Fix for bug in scripts for processing recordings

Show chat options tab when private chat disabled

Cleaned up undefined emoji strings

Four minor accessibility fixes

bigbluebutton-web: On changeState, create the directory named by the pathname, including any necessary but nonexistent parent directories.

Added Low Latency (h.263) option to profiles.xml. 

While turning off h.264 encoding reduces quality, it also reduces latency.  The use case for this profile is instruction that requires lower latency such as music training.

Update index.html

Bump the copyright date.

 - fix issue 2812 by setting end time when last user leaves

Get recordings merged enhancements

 - desktop sharing doesn't stop when the applet is tunneling. Catch t…

Put the fix for #2437 back in

 - desktop sharing doesn't stop when the applet is tunneling. Catch the exception and stop the applet.

fix duplicated publish video windows after reconnection #2808

The problem was that we were handling the reconnecton succeeded event to start streaming again, but this event is dispatched for every connection, not only for the video connection, and it was causing restream to be called multiple times after the reconnection, eventually duplicating the publish windows; when it occurred, the user was publishing two separate video streams.
The solution was to use the ConnectedEvent used only by the video connection, which also carries the information if that connection is due to a reconnect.
It looks like the current solution to restream after a reconnect doesn't work if the user was publishing two cameras at the same time. In that case, I think only the second camera will be published again.

Reworked server-side ES6

Resolves #2955

Minor fixes