other than WMS. It should do this for any Grid layer. Ticket #496 includes
a patch for this: it adds a mergeNewParams call at the Layer.Grid level,
(subclassing Layer.HTTPRequest) which reinits the tile grid. This commit
also includes tests for this functionality. Since testing directly
on the Grid layer doesn't work (it's meant to be subclassed), we need to
instead pick a second layer to test -- in this case, ka-Map. Thanks to
Bill Woodall for the patch.
git-svn-id: http://svn.openlayers.org/trunk/openlayers@2237 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf