Modified the previous implementation of the whiteboard individual access to remove
multiple Collections dependency on this feature. Multi-user whiteboard is now an
array instead of a boolean value and most of the access control can be synchronized
and handled by akka-apps.
New config called paginationThreshold defines classes of page sizes that depend on the number of participants of a meeting
The rationale is pretty much the same as the cameraQualityThresholds, but the thresholds are users here and the ceilings are the page sizes
Moderators are able to send a message to the meeting's guest lobby. This new
event reaches bbb-web and is sent to the guest user with her/his status response
while polling. All guest users that are waiting for acceptance will be able to
read this message.
enableGuestLobbyMessage is disabled by default.
Both debounce or throttle could be used to prevent a spammer from
annoying the moderators.
With debounce, a spammer won't even be noticed by the mods, but
there won't be new notifications for legit guests during the spam.
With throttle, a spammer could still annoy the mods, we would only make
the interval between notifications bigger.
It is a tradeoff. An ideal solution would be preventing spamming from
the same user, but probably unnecessarily complex.
When managing Etherpad's pads, Meteor makes API calls to initiate the closed captions
and shared notes modules. The pad id was being mapped to a shorter id than the meeting
id because of a Etherpad lenght limitation.
Changed to something less guessable.
One of the main issues in 2.2.x problem reports currently in the wild in social media and in the bbb admin groups seems to be that people turn a couple of webcams on and the clients or the server already can't handle it any more. In most cases, enabling video-pagination for mobile devices and also cameraQualityThresholds already "solves" the problem and makes it possible for much more students to attend online-class as well as raise acceptance of using BBB instead of other commercial services.
Even after promoting these new settings for weeks, many BBB operators still don't know of them and are surprised and happy once they enable it.
This change contians rather high values so that admins see that these features exist, but typical use cases which might not want video-pagination enabled (typical 28people school class) are still not "annoyed".
