-* topology
- - considers peers 'connected' well before they actually are
- (since core notifies about it too early?)
- - needs testing
-* hostlist
- - test fails (looks like it works, but that's because of a bad
- connectivity notification; somehow core is unable to send
- messages successfully via transport)
-* CORE:
- - soliciting traffic for clients that registered for it is not implemented
- (in the service, client API supports GNUNET_MESSAGE_TYPE_CORE_SOLICIT_TRAFFIC
- but never receives any such messages); how to avoid busy-waiting here
- is a good question (solicit => nothing, when to solicit again???)