Fix maxY for series that doesn't allow duplicates (JUnit test added as well).
Fix maxY for series that doesn't allow duplicates (JUnit test added as well).
jfree/jfreechart,jfree/jfreechart,GitoMat/jfreechart,jfree/jfreechart,GitoMat/jfreechart,simon04/jfreechart,GitoMat/jfreechart,simon04/jfreechart,simon04/jfreechart,simon04/jfreechart,GitoMat/jfreechart,jfree/jfreechart