Fix user drop down - HTML5 Issue #3764

Fix multiple welcome messages, issue #3792 HTML5

 Check userId when validating token

Display WebRTC stats inside the Flex client

 - check if the client validating the token mathes the userId of the registered user. If
   we don't, the client can pass any token and impersonate other users.

[HTML5] Fix client freeze on private chat partner leaving. Fix for #3786

Show message "Recommend using either Firefox or Chrome for better audio" in audio window

 Cleanup

 - remove extra > on meeting name on getRecording API response

Check for WebRTC availability instead of checking for the browser name to display the AudioSelectionWindow browser hint.

[HTML5] Fix event name causing issues with listenOnly status

Display "Recommend using either Firefox or Chrome for better audio" when any of other browser is used.

Fixed output of free memory + minor code cleanup

[HTML5] - Accessibility update 03

[HTML5] - Actions Button Fix

Updated HTML5 emoji status names to match with the Flex client.

recording presentation: Improve calculations of bar sizes in poll results

gnuplot's auto-margins don't work well on this graph, so manually specify
the top/bottom (actually left/right - the graph is rotated 90°) to make
the bars fit better, particularly when using wide aspect ratio slides.

The code was previously dividing by the total number of votes rather than
the max number of votes, which meant it was underestimating the width of
the bars. In some cases, this meant that the label for number of votes would
overlap the percentages.

Fixes #3725

[HTML5] - Fix user not being removed on tab close

Extra commit for html5 client emojis