Bump version to 0.3.21

sodabrew · sodabrew · commit 329b63ba36db · 2016-05-07T20:30:37.000-05:00
diff --git a/lib/mysql2/version.rb b/lib/mysql2/version.rb
@@ -1,3 +1,3 @@
 module Mysql2
-  VERSION = "0.3.20"
+  VERSION = "0.3.21"
 end
