new restrictedMinZoom property. r=bartvde (closes #3024)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11058 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

tests/Layer.html

@@ -556,7 +556,7 @@
 
     function test_Layer_getZoomForResolution(t) {
 
-        t.plan(12);
+        t.plan(13);
 
         var layer = new OpenLayers.Layer('Test Layer');
         layer.map = {};
@@ -584,6 +584,9 @@
              "(fractionalZoom) doesn't return zoom below zero");
         t.eq(layer.getZoomForResolution(1).toPrecision(6), (layer.resolutions.length - 1).toPrecision(6),
              "(fractionalZoom) doesn't return zoom above highest index");
+        
+        layer.restrictedMinZoom = 1;
+        t.eq(layer.getZoomForResolution(200), 1, "zoom all the way out, but we have a restrictedMinZoom of 1");
 
     }