#258 Add option to use outline for whiskers

[Peter Becker]

The patch adds an option to the BoxAndWhiskerRenderer class that allows changing the color used for the whiskers from the item's normal paint to the item's outline paint. This is more or less necessary for us since some of the item colors are very light and drawn on either white or light gray backgrounds.

I tried to stick with the naming and formatting styles, although I am not too fond about the name of the property -- particularly since the getter doesn't follow the is/has pattern of Java Beans. I just can't think of anything better.

[Peter Becker]

Patch against SVN as of 20090928

[David Gilbert]

Thanks for the patch. I've committed this for inclusion in the 1.0.14 release. I also updated the equals() method to check the new flag.