Using gun's new envelope system (where routing and de-duplication happen
inside gun core), server-to-server synchronization has been
implemented.
However, it comes with this warning: the chain isn't yet ready and
you'll have difficulty reading or writing data via the chain.
Better de-duplication on messages sent for GET and PUT requests,
allowing full circular connections without blowing up your computer.
Sadly, this broke some things against the previous version, so per
@amark's request I'm publishing so he can debug.
