Checking in changes prior to tagging of version 0.0.0_03.

Changelog diff is:

diff --git a/Changes b/Changes
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@@ -2,6 +2,8 @@ Revision history for Perl extension Algorithm-SetSimilarity

 {{$NEXT}}

+0.0.0_03 2013-09-26T13:52:55Z
+
     - Add a module of the weighted version of the Jaccard coefficient algirithm.
     - Add a module of the weighted version of the set similarity join algorithm.