added some logs

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@20801 99afaf0d-6903-0410-885a-c66a8bbb5f81
now data points' coordinate comparison can be performed in a case sensitive way or not. The latter is the default 

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi@20802 99afaf0d-6903-0410-885a-c66a8bbb5f81