WebRTCv2.6.2

• Fixed possible crashes when trying to close rtc session immediately after creating it.

Conference module (Enterprise-only feature):

• Added new listOnlineParticipantsWithCompletionBlock: method in QBRTCConferenceSession class. Use it to get all current participants IDs in the dialog.

• Callbacks about joining and leaving occupants will now always be called when session created (this fixing the lack of callbacks when we want to subscribe to users feed, but don't want to post ours).

• Fixed conference connection states (sometimes states would return wrong one).