Merge branch 'dns-dnssec-fix-dbmaster' into 'stable-3.1'

Till Brehm

2016-04-12 c92a4ee47ce5a7bb6b0e32a321ce09fece3e11dc

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From: ISPConfig <postmaster@localhost.localdomain>
Subject: Welcome to your new email account.
 
Welcome to your new email account. Your webmaster.