When I set legend to center top, the title and legend overlap. Seehttp://jsfiddle.net/kzoon/97jey/1/
I can overcome this problem by setting the y value on the legend, but I think that is just a workaround because y depends on lots of things.
The legend should be allotted room between the title and the plotArea, where legend.marging determines the space between legend and plotArea and Title.margin determines the space between Title and Legend.
Should this issue be regarded as a bug?
In the meantime this workaround http://jsfiddle.net/kzoon/sPJcu/6/
works rather well as long as Title/Sublitle don't have <br/> in them