Rakefile in ruby_ext-0.4.25 vs Rakefile in ruby_ext-0.5.1

@@ -6,8 +6,10 @@
 project(
   name: "ruby_ext",
   gem: true,
   summary: "Ruby Extensions",
 
+  version: '0.5.1',
+
   author: "Alexey Petrushin",
   homepage: "http://github.com/alexeypetrushin/ruby_ext"
 )
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