BF: fix dovecot filter for when no TLS is enabled on pop/imap
ENH: remove non-capturing groups for readibility
Merge branch 'dovecot' of https://github.com/grooverdan/fail2ban

* 'dovecot' of https://github.com/grooverdan/fail2ban:
  ENH: remove non-capturing groups for readibility
  BF: fix dovecot filter for when no TLS is enabled on pop/imap

Conflicts:
	ChangeLog -- changelog entries.  Also untabified few other spots