implemented iterator in JasperPrintListFileHandler

git-svn-id: http://svn.code.sf.net/p/dynamicreports/code/trunk@810 bf0c503b-2351-4f66-9eae-aa52f3279a3f
updated chart junit tests

git-svn-id: http://svn.code.sf.net/p/dynamicreports/code/trunk@811 bf0c503b-2351-4f66-9eae-aa52f3279a3f