[D-runtime] [dlang/druntime] b5f560: Rename HACKING.md to CONTRIBUTING.md

[GitHub via D-runtime]

  Branch: refs/heads/master
  Home:   https://github.com/dlang/druntime
  Commit: b5f560195592e569443d3e1d4ccfed0dc611c7c5
      https://github.com/dlang/druntime/commit/b5f560195592e569443d3e1d4ccfed0dc611c7c5
  Author: Mathias Lang <mathias.lang at sociomantic.com>
  Date:   2016-06-29 (Wed, 29 Jun 2016)

  Changed paths:
    A CONTRIBUTING.md
    R HACKING.md

  Log Message:
  -----------
  Rename HACKING.md to CONTRIBUTING.md

Github will recognize it and offer a link to it when submitting pull requests.
See https://help.github.com/articles/setting-guidelines-for-repository-contributors
and https://github.com/blog/1184-contributing-guidelines


  Commit: 0f24138f6bf35cef7911272029d367080d9b45e6
      https://github.com/dlang/druntime/commit/0f24138f6bf35cef7911272029d367080d9b45e6
  Author: Walter Bright <WalterBright at users.noreply.github.com>
  Date:   2016-06-29 (Wed, 29 Jun 2016)

  Changed paths:
    A CONTRIBUTING.md
    R HACKING.md

  Log Message:
  -----------
  Merge pull request #1604 from mathias-lang-sociomantic/contributing

Rename HACKING.md to CONTRIBUTING.md


Compare: https://github.com/dlang/druntime/compare/f72c9f5287bb...0f24138f6bf3