Merge branch 'stable-3.1'

Marius Burkard

2016-07-10 e1ceb050e19c7574bca146a8da7047ee4ff456b5

 install/sql/incremental/upd_0027.sql

New file
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ALTER TABLE  `mail_user` ADD  `autoresponder_subject` VARCHAR(255) NOT NULL DEFAULT 'Out of office reply' AFTER  `autoresponder_end_date`;