Merge branch 'master' into 'stable-3.1'

Till Brehm

2016-04-13 c420e715c5bf53527b5828b0de3fa3b52bdff4d1

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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 =