0.15.0-rc.1

• Android: changed logic for using foreground service in video calls
• Android: changed permissions in Manifest for video calling service
• Android: changed logic for init modules
• Android: fixed logic for getting loggedUserId in IncomingMessageListener
• Android: fixed logic for audio call manager
• Android: fixed logic for init cache for the chat module
• Android: fixed logic for setting chat endpoint in migration flow