[dovecot/core] bed843: Released v2.2.28.

[GitHub]

  Branch: refs/heads/release-2.2.28
  Home:   https://github.com/dovecot/core
  Commit: bed84341d457ca12b3ffc2789f5ce5a50f473c17
      https://github.com/dovecot/core/commit/bed84341d457ca12b3ffc2789f5ce5a50f473c17
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-02-24 (Fri, 24 Feb 2017)

  Changed paths:
    M NEWS
    M configure.ac

  Log Message:
  -----------
  Released v2.2.28.