Merge branch 'sharednotes-limit' of https://github.com/pedrobmarin/bigbluebutton into pedrobmarin-sharednotes-limit

Merge branch 'handle-presenter-gone' of https://github.com/antobinary/bigbluebutton into antobinary-handle-presenter-gone

Merge branch 'do-not-send-extra-msg-on-val-token' of https://github.com/ritzalam/bigbluebutton into ritzalam-do-not-send-extra-msg-on-val-token

Merge branch '2x-client-theme' of https://github.com/riadvice/bigbluebutton into riadvice-2x-client-theme

 - make flash client explicitly send user join message to server

[HTML5 2.0] added new icons

 - reset last user left timestamp when user joins meeting

Log meeting expiry

 - log reason when meeting expires

[HTML5] Recovered Screenshare in the HTML5 client 2.0

Merge branch 'akka-transcode-new-messages' of https://github.com/prlanzarin/bigbluebutton-1 into prlanzarin-akka-transcode-new-messages

 - convert over lock setting into 2x messages