April 08, 2016
  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: 8df5bdfd4e85c8678473348b2eb48a934b086779
      https://github.com/D-Programming-Language/phobos/commit/8df5bdfd4e85c8678473348b2eb48a934b086779
  Author: Dmitry Olshansky <dmitry.olsh@gmail.com>
  Date:   2016-04-07 (Thu, 07 Apr 2016)

  Changed paths:
    M std/regex/internal/backtracking.d

  Log Message:
  -----------
  Generating unrolled code for small codepoint sets

Need to figure out the case of empty charsets.


  Commit: c1e6f1d64369dd90ada705aeae820451f02d8dec
      https://github.com/D-Programming-Language/phobos/commit/c1e6f1d64369dd90ada705aeae820451f02d8dec
  Author: Steven Schveighoffer <schveiguy@yahoo.com>
  Date:   2016-04-08 (Fri, 08 Apr 2016)

  Log Message:
  -----------
  Merge pull request #4146 from DmitryOlshansky/faster-ctr

[std.regex] Faster compile-time regex


Compare: https://github.com/D-Programming-Language/phobos/compare/635c9aa0d591...c1e6f1d64369