v2.21


git-svn-id: http://kryo.googlecode.com/svn/trunk@359 a9660ef0-a895-11de-8ba5-91705c1537ed
Pushed version in pom.xml to 2.22-SNAPSHOT for next dev iteration


git-svn-id: http://kryo.googlecode.com/svn/trunk@361 a9660ef0-a895-11de-8ba5-91705c1537ed