2.10.0-beta4 (2.10.0.24102)

• Fix NullReferenceException in DiagnosticsEventListener.OnEventWritten
• Fix RichPayloadEventSource can get enabled at Verbose level
• Fix DiagnosticsTelemetryModule can get added more than once
• Modify default settings for ServerTelemetryChannel to reduce disk usage. MaxTransmissionSenderCapacity is changed from 3 to 10, MaxTransmissionBufferCapacity is changed from 1MB to 5MB