[phobos] [D-Programming-Language/phobos] 23352f: Update changelog.dd

[GitHub via phobos]

  Branch: refs/heads/stable
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: 23352ff23429ad70a1ee788d233b5586a914e9cc
      https://github.com/D-Programming-Language/phobos/commit/23352ff23429ad70a1ee788d233b5586a914e9cc
  Author: Jack Stouffer <jack at jackstouffer.com>
  Date:   2015-10-27 (Tue, 27 Oct 2015)

  Changed paths:
    M changelog.dd

  Log Message:
  -----------
  Update changelog.dd


  Commit: 42ca3887229f0aa9e5edd1d7f08e60dcaf2a1710
      https://github.com/D-Programming-Language/phobos/commit/42ca3887229f0aa9e5edd1d7f08e60dcaf2a1710
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-10-29 (Thu, 29 Oct 2015)

  Changed paths:
    M changelog.dd

  Log Message:
  -----------
  Merge pull request #3778 from JackStouffer/patch-4

Mention documentation improvements


Compare: https://github.com/D-Programming-Language/phobos/compare/995622e7df67...42ca3887229f