we were missing a break statement in the KML parseStyle method, tests are modified accordingly, r=fredj (Closes #2448)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10006 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/KML.js

@@ -329,6 +329,7 @@ OpenLayers.Format.KML = OpenLayers.Class(OpenLayers.Format.XML, {
                     if (width) {
                         style["strokeWidth"] = width;
                     }
+                    break;
 
                 case "polystyle":
                     var color = this.parseProperty(styleTypeNode, "*", "color");
@@ -358,6 +359,7 @@ OpenLayers.Format.KML = OpenLayers.Class(OpenLayers.Format.XML, {
                     }
                    
                     break;
+
                 case "iconstyle":
                     // set scale
                     var scale = parseFloat(this.parseProperty(styleTypeNode,