Thinking about it... Both HTCP and cache digests have (few) false positives, in
which case a cache can send a request to a peer which doesn't have the requested
information (miss). Therefor I guess we shouldn't completely deny miss_access to
cache peers in the config file, as it should happen only rarely, and we don't
want to provide the user with an error message in that case.

Removed miss_access from knams squids, will do the same for yaseo if it works.

Is this dealt with?