fixed bug in JCD serialization

git-svn-id: http://lire.googlecode.com/svn/trunk@120 f280a053-6817-128d-8a7e-cdf98506035a
Made benchmarking based on ground truth simpler.

git-svn-id: http://lire.googlecode.com/svn/trunk@121 f280a053-6817-128d-8a7e-cdf98506035a