Removing null default values from symbolizers. Later, we could consider static setDefaults methods on the constructors. r=ahocevar (closes #2840)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10770 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Symbolizer/Text.js

@@ -16,32 +16,37 @@ OpenLayers.Symbolizer.Text = OpenLayers.Class(OpenLayers.Symbolizer, {
     /** 
      * APIProperty: label
      * {String} The text for the label.
+     * 
+     * No default set here.  Use OpenLayers.Renderer.defaultRenderer for defaults.
      */
-    label: null,
     
     /** 
      * APIProperty: fontFamily
      * {String} The font family for the label.
+     * 
+     * No default set here.  Use OpenLayers.Renderer.defaultRenderer for defaults.
      */
-    fontFamily: null,
 
     /** 
      * APIProperty: fontSize
      * {String} The font size for the label.
+     * 
+     * No default set here.  Use OpenLayers.Renderer.defaultRenderer for defaults.
      */
-    fontSize: null,
 
     /** 
      * APIProperty: fontWeight
      * {String} The font weight for the label.
+     * 
+     * No default set here.  Use OpenLayers.Renderer.defaultRenderer for defaults.
      */
-    fontWeight: null,
     
     /**
      * Property: fontStyle
      * {String} The font style for the label.
+     * 
+     * No default set here.  Use OpenLayers.Renderer.defaultRenderer for defaults.
      */
-    fontStyle: null,
 
     /**
      * Constructor: OpenLayers.Symbolizer.Text