January 26, 2015
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: af1de5c71d345602d2e4c370a3eb147f70c427b7
      https://github.com/D-Programming-Language/druntime/commit/af1de5c71d345602d2e4c370a3eb147f70c427b7
  Author: Martin Nowak <code@dawg.eu>
  Date:   2015-01-26 (Mon, 26 Jan 2015)

  Changed paths:
    M src/gc/gc.d

  Log Message:
  -----------
  use a tail list to chain freelist elems in forward order

- after a collection new allocations are served
  from the first pool not the last one leading to
  less fragmentation

- GC.free still pushes to the list head


  Commit: 513ac86f8f6111d38bfa6c8c5acfb45a2379690a
      https://github.com/D-Programming-Language/druntime/commit/513ac86f8f6111d38bfa6c8c5acfb45a2379690a
  Author: Rainer Schuetze <r.sagitario@gmx.de>
  Date:   2015-01-27 (Tue, 27 Jan 2015)

  Changed paths:
    M src/gc/gc.d

  Log Message:
  -----------
  Merge pull request #1118 from MartinNowak/freelistOrder

use a tail list to chain freelist elems in forward order


Compare: https://github.com/D-Programming-Language/druntime/compare/3d0b84f4c745...513ac86f8f61