Corrected OpenLayers code to reflect fix to geodetic resolution factor.

The openlayers generation code subtracted 1 from the server zoom level in order to account for the resolution it was using (0.703125) which should be 1.40625.  This was caused the javascript code to sometimes request TMS tiles with invalid zoom levels (-1) in cases where the map was fully zoomed out.  With this fix, the geodetic openlayers code now more closely follows the same logic as the openlayers code for the mercator profile.