Chutney should allow single onion and tor2web modes on any HS / client
At the moment, chutney users have to specifically configure single onion mode and tor2web mode.
It would be nice to allow any chutney net to be run with its hidden services in single onion mode, perhaps using config options that are conditional on environmental variables.
This would be harder with tor2web, because we'd need a separate tor binary as well. And it might not be worth the effort if tor2web isn't part of next-generation hidden services.