Log Message:
Update to 2.130:

2.130     2014-11-19 23:25:46-05:00 America/New_York

    [ADDED]

    - from_string_hash can take optional constructor arguments

    [CHANGED]

    - bad_version_hook callback gets module name as well as version string

    - undefined/empty versions given to from_string_hash or
      add_string_requirement now carp and are coerced to "0" instead of
      being fatal.  This is more consistent with how the other requirement
      functions work.