figure out the window's x coordinate. However, when the shortcut and help button is hidden, the
lang selector moves to the right so the logout alert window overflows the browser to the right.

   broadcasting before the late users joined

Fixed broadcast module not showing for clients, multiple windows opening for presenter and stream not playing if joining once the stream was started

Make generation of png images for pdf pages more resiliant.

We now use ghostscript to output pngs directly from the original pdf,
rather than using convert on the split pages. This should make corrupt
or strange pdfs less likely to cause issues.

As well, if a pdf page conversion fails (for any reason, including that
the original pdf is missing...) it will be logged, and a blank page
generated, and processing will continue.

fixes audio  extension problem in matterhorn

update locales

matterhorn scripts work with new version of ffmpeg

update bbb-record utility

Update locales

 - fix race condition where video share button doesn't show up somtimes when presenterShareOnly=true