Fix Thick Fat
Improvements to /data searching
The Levenshtein distance threshold for fuzzy matching is now
dynamic.

This prevents things such as any 3-or-fewer-letter search matching
'Muk'.
/bash command
useful for debugging servers
Show a message to banned users.
Support Spamhaus DNSBL
Now, by default, any IP on the Spamhaus DNSBL list will be automatically
banned.
Cache DNSBL results
Merge remote-tracking branch 'upstream/master'