DOC: credits
ENH: stricter regex thanks to Steven Hiscocks (kwirk)
BF: need to anchor the start to avoid another repeat of DoS injection like Apache
BF: authentication errors end in 01-09 but the beginning part indicates the service as per https://github.com/fail2ban/fail2ban/issues/246#issuecomment-19327955 thanks to ykimon
ENH: sample log + more specific regex
BF: fix to proxy port in 3proxy example
ENH/BF: exim improvements with sample
ENH: proftp regex hardening and log messages
ENH: dovecot regexs rewritten and extra failures
ENH: injection of fail data into USER field
ENH: proftpd chan accept usernames with spaces
TST: attempts at injection with username=rhost=1.2.3.4 have no user= logged in dovecot-1.2.15
ENH: anchor a bit mor. Use \d and \w where possible. Escape a literal .
ENH: regex hardening on assp
BF: [SSL-out] is optional in assp
BF: missed a space
ENH: asterisk -- use \S instead of [^:] + prefix failregex with ^\[

detected date portion is stripped from the string to be matched, so it is not only
the right ] is left, but also the left one ;-)
ENH: 'heavydebug' level == 5 for even more debugging in tricky cases

I mocked logging library directly -- seems to be Ok.
RF: reworked -regex cmdline tool to use optparse, some unification and enhancement of outputs
ENH: fail2ban-regex -- add specification of loglevels to enable