Fixes the issue with not able to send feedback after JitsiConference.leave

Fixes local audio levels after reload.

Removes reloads

Surrounds code in successcallback with try/catch and call errorcallba…

If there is a problem with ssrc in successcallback of peerconnection create answer, no callback is called as a result of execution TraceablePeerConnection.createAnswer.

Logs the reason for the reload

Delete latedef repetition

Queue analytics events

Use the caching from statistics, by calling loaded and dispose methods (onload and onerror).

_setMute refactoring to allow muting/unmuting local tracks when they are not in conference

Analytics update

Adds re-initialize of callstats if addNewFabric fail.

Implements desktop sharing extension external installation

Moves loading of analytics in the library.

Fix session-accept timeout

Do not flush the connection after 'session-accept'
is queued to avoid BOSH race condition issue.

This is an unrecoverable error and in current state of
the system reload in the client is the least complex
thing to do.

Analytics move