2017-05-23 (0.3.1)
   * Include PairDistance fix from dominikgrygiel, Thx.
2017-03-27 (0.3.0)
   * Update some dependencies
2013-10-14 (0.2.12)
   * Include test fix from Juanito Fatas <katehuang0320@gmail.com>. Thx!
2013-01-16 (0.2.11)
   * Include some fixes from Jason Colburne <jason@redbeardenterprises.com>.
     Thx!
2012-02-06 (0.2.10)
   * Use xfree instead of free to avoid (possible) problems.
2011-11-14 (0.2.9)
    * Provide amatch/rude and amatch/polite for require (the latter doesn't
      extend ::String on its own)
    * pair_distance_similar method now can take an optional regexp argument for
      tokenizing.
2011-09-26 (0.2.8)
    * Depend on tins library.
2011-08-06 (0.2.7)
    * Fix some violations of ISO C90 standard.
2011-07-16 (0.2.6)
    * Applied patch by Kevin J. Lynagh <kevin@keminglabs.com> fixing memory
      leak in Jaro match.
2009-09-23 (0.2.5)
    * Added lib to gem's require_paths.
    * Using rake-compiler now.
2009-08-25 (0.2.4)
    * Included Jaro and Jaro-Winkler metrics implementation of Kevin Ballard
      <kevin@rapleaf.com>. Thanks a lot.
    * Made the extension compile under Ruby 1.9.
2006-06-25 (0.2.3)
    * Fixed agrep.rb to use the new API.
2005-10-11 (0.2.2)
    * Fixed a typo in extconf.rb that prohibitted compiling on
    non-gcc compilers.
2005-09-12 (0.2.1)
    * Bugfix: Wrong type for pattern length corrected. Thanks to David
    Heinemeier Hansson for reporting it.
2005-06-01 (0.2.0)
    * Major changes in API and implementation:
      Now the Levenshtein edit distance, Sellers edit distance, the Hamming
      distance, the longest common subsequence length, the longest common
      substring length, and the pair distance metric can be computed.
2005-01-20 (0.1.4)
    * Better argument handling in initialization method
    * Minor changes in Rakefile and README.en
2004-09-27 (0.1.3)
    * Rakefile and gem support added.
2004-09-24 (0.1.2)
    * Uses Test::Unit for regression tests now.
2002-04-21 (0.1.1)
    * Minor changes: documentation, more test cases and exceptions.
2002-03-14 (0.1.0)
    * Initial Version