Improve device errors

We log an application log to callstats and analytics event.

Finds correct error when getUserMedia succeed with only one of the audio or video, and the other fails.

When calling getUserMedia in chrome for just video with no video devices connected we receive error with name DevicesNotFoundError.

Fixes the availableDevices, to reflect the devices for which we succeeded or failed to obtain stream.

Analytics cross region

Fixes the issue with SS external installation dialog is not closed after the plugin has been installed

Implements detection for cancel on the SS pickup window

Also adds a safe check if there was no regionInfo to skip reporting cross-region.

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