[2.5] RTC Launcher Release - 11 Mar 2020

NEW #45643: beta version of JS-SDK

NEW #43776: O365 integration

NEW #29752: Services support now screensharing and incoming audio/video calls

NEW #44753: Chats runs simultaneous in two different tabs

NEW #40174: iOS-SDK: Callback functionality for iOS clients

FIXED #47087: Presence issues

FIXED #47461: Transfers issues

FIXED #47450: Incoming call not handled

FIXED #47465: Incoming messages are not working for AV+Cobrowsing

Latest iOS Safari does not work with IM and presentation. A/V with presentation works
Escalated window will not work in IE for different domains
Agent can receive two invitations in case someone is starting a chat and does not wait until it's established and clicks on audio call
During active A/V calls it might happen that video gets lost due to the active speaker
Sometime loading of contacts may take some time
Desktop Sharing does not work for mobile browser
The transport method longpolling can cause issues sometimes
Microsoft Edge(non chromium edition) does not allow changing the camera to self