Log Message:
Update to 1.06. From the changelog:

- Drop support for Perls prior to 5.6
- Fix bug in tests that fail could fail with parallel build
  (rt#92313, HAARG++)
- Fixed typo in documentation (rt#90009, dsteinbrunner++)
- Incidentally fixed compatability with Perls that do not have `.` in @INC
  (rt#121002)