- Add color depth option to guacamole: default to 16 to maintain previous display quality, env var VISA_VDI_GUACD_PARAMETER_COLOR_DEPTH to set it to 8, 16, 24 or 32
- Fix bug of emails being sent to owner rather than member added to instance
- Fix instance filtering by instance state
- Modify InstanceStateChangedEvent to send the termination date as the expiration date if the expiration date is null