July 06, 2015
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: 8f4c07a840bd8538fbffc3eecd3a683b557be6f4
      https://github.com/D-Programming-Language/phobos/commit/8f4c07a840bd8538fbffc3eecd3a683b557be6f4
  Author: Walter Bright <walter@walterbright.com>
  Date:   2015-07-05 (Sun, 05 Jul 2015)

  Changed paths:
    M posix.mak
    M std/concurrency.d
    A std/concurrencybase.d
    M win32.mak
    M win64.mak

  Log Message:
  -----------
  add std.concurrencybase


  Commit: 227f1f220d709e8b063dd8ae5cc33a6829ebcb68
      https://github.com/D-Programming-Language/phobos/commit/227f1f220d709e8b063dd8ae5cc33a6829ebcb68
  Author: Hara Kenji <k.hara.pg+dev@gmail.com>
  Date:   2015-07-06 (Mon, 06 Jul 2015)

  Changed paths:
    M posix.mak
    M std/concurrency.d
    A std/concurrencybase.d
    M win32.mak
    M win64.mak

  Log Message:
  -----------
  Merge pull request #3473 from WalterBright/concurrencybase

add std.concurrencybase


Compare: https://github.com/D-Programming-Language/phobos/compare/c3a39c54613a...227f1f220d70