Release Name: 1.3.4

Notes:
* Changed license to Artistic 2.0


Changes:
* Changed license to Artistic 2.0.
* Some gemspec updates, including the addition of a license, an updated
  description, and changing test-unit from a runtime dependency to a
  development dependency.
* Some documentation updates, mostly to make certain things invisible that
  aren't meant for public consumption.
* One test now skipped on 64-bit versions of Windows.