Use degrees instead of radians for geometry.rotate method (closes #948).

git-svn-id: http://svn.openlayers.org/trunk/openlayers@4127 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

tests/Geometry/test_LinearRing.html

@@ -159,7 +159,7 @@
 
         // rotate a quarter turn around the origin
         var origin = new OpenLayers.Geometry.Point(0, 0);
-        var angle = Math.PI / 2;
+        var angle = 90;
         
         ring.rotate(angle, origin);