Merge branch 'master' into 'stable-3.1'

Till Brehm

2016-04-22 4ae3b94bce6b2f26002c1a50247a01ab4cf2219a

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[Definition]
failregex = (?: pop3-login|imap-login): .*(?:Authentication failure|Aborted login \(auth failed|Aborted login \(tried to use disabled|Disconnected \(auth failed).*rip=(?P<host>\S*),.*
ignoreregex =