Comb bw auth logs and fix or demote frequent ERRORs and WARNs
Apparently the bw auths are noisy, and log several connection issues as ERROR and WARN, when they probably should be NOTICE.
However, some of them might represent more serious issues, such as nodes improperly being chosen as exits: ERROR[Wed Sep 21 20:48:40 2011]:An unknown HTTP error occured Socks5Error: (2, 'connection not allowed by ruleset')
So some care should be taken, rather than just demoting everything.