This is not an ideal situation, becauuse it's not really 100% correct for a
mercator projection, but it does cause things to work.
It seems that for some reason, the EventPane isn't actually catching all the
move events -- this seems to be what is causing the slow dragging. I'm not
sure of the reason for this, but maybe Erik or someone else will be able to
offer hints. I could also just be wrong ;) I just know it's slow, really.
git-svn-id: http://svn.openlayers.org/trunk/openlayers@1208 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf