- display guest waiting button in users list window when authed non-…

   Set enableGuestUI="true" and guestSoftMode="true" in config.xml

 - fix tracking of user inactivity

 - try to make comment clearer on purpose of value setting

Merge branch 'user-inactivity-refactor' of https://github.com/riadvice/bigbluebutton into riadvice-user-inactivity-refactor

Add new parameter `userInactivityThresholdInMinutes` to bigbluebutton.properties and improve inactive user warning and eject from server.

Refactor user inactivity messages naming to have two distinct names: `UserInactivityInspectMsg` and `UserActivitySignResponseMsg`.

 - make authenticated non-moderators wait if gues policy is ASK_MODER…

Move user inactivity configuration parameters to bigbluebutton-web application and rename them to userInactivityLogoutTimerInMinutes and userInactivityResponseDelayInMinutes.

Fix comments in turn-stun-servers.xml (v2.2-dev)

 - send only recording timer updates to clients when the meeting is r…

Fix multi-line PDF text export

When some code was being moved around, it looks like a bad sed command got run
on this file which made the comments/documentation unreadable.

Revert to the previous version of the file.

 - only allow moderators in when guest policy is ASK_MODERATOR

Copyable user info

Correct the userlist gear visibility

Use png of slide for export with annotations

Fix pres download issue