fix Natural Docs comments, no functional change. p=jorix, r=me (closes #2989)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11576 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer.js

@@ -556,7 +556,7 @@ OpenLayers.Layer = OpenLayers.Class({
      * Method: moveTo
      * 
      * Parameters:
-     * bound - {<OpenLayers.Bounds>}
+     * bounds - {<OpenLayers.Bounds>}
      * zoomChanged - {Boolean} Tells when zoom has changed, as layers have to
      *     do some init work in that case.
      * dragging - {Boolean}
@@ -715,7 +715,7 @@ OpenLayers.Layer = OpenLayers.Class({
      *     subverted.
      * 
      * Parameters:
-     * visible - {Boolean} Whether or not to display the layer (if in range)
+     * visibility - {Boolean} Whether or not to display the layer (if in range)
      */
     setVisibility: function(visibility) {
         if (visibility != this.visibility) {
@@ -1079,7 +1079,7 @@ OpenLayers.Layer = OpenLayers.Class({
      * APIMethod: getZoomForExtent
      * 
      * Parameters:
-     * bounds - {<OpenLayers.Bounds>}
+     * extent - {<OpenLayers.Bounds>}
      * closest - {Boolean} Find the zoom level that most closely fits the 
      *     specified bounds. Note that this may result in a zoom that does 
      *     not exactly contain the entire extent.