* Added support for Python 3.7
* Implemented buffering on monitoring agents
* Fixed all known issues with `Proxy`
* Replaced pickling with custom interpreter-independent serialization
* Started to ignore monitor-related errors
* Limited tracebacks in the monitoring UI up to one last call
* Refactored `MonitoringSnapshot` (separated its core from task payloads)
* Made snapshot updates more reliable
* Added more debug logging