Promote several properties to public API.

The properties

  * layers
  * queryVisible
  * url
  * layerUrls
  * infoFormat
  * vendorParams
  * format
  * formatOptions

should all be visible in the public API since they are essentially very
convenient to use when customizing the control.

lib/OpenLayers/Control/WMSGetFeatureInfo.js

@@ -65,7 +65,7 @@ OpenLayers.Control.WMSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
     output: "features",
     
     /**
-     * Property: layers
+     * APIProperty: layers
      * {Array(<OpenLayers.Layer.WMS>)} The layers to query for feature info.
      *     If omitted, all map WMS layers with a url that matches this <url> or
      *     <layerUrls> will be considered.
@@ -73,21 +73,21 @@ OpenLayers.Control.WMSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
     layers: null,
 
     /**
-     * Property: queryVisible
+     * APIProperty: queryVisible
      * {Boolean} If true, filter out hidden layers when searching the map for
      *     layers to query.  Default is false.
      */
     queryVisible: false,
 
     /**
-     * Property: url
+     * APIProperty: url
      * {String} The URL of the WMS service to use.  If not provided, the url
      *     of the first eligible layer will be used.
      */
     url: null,
     
     /**
-     * Property: layerUrls
+     * APIProperty: layerUrls
      * {Array(String)} Optional list of urls for layers that should be queried.
      *     This can be used when the layer url differs from the url used for
      *     making GetFeatureInfo requests (in the case of a layer using cached
@@ -96,7 +96,7 @@ OpenLayers.Control.WMSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
     layerUrls: null,
 
     /**
-     * Property: infoFormat
+     * APIProperty: infoFormat
      * {String} The mimetype to request from the server. If you are using 
      * drillDown mode and have multiple servers that do not share a common 
      * infoFormat, you can override the control's infoFormat by providing an 
@@ -105,7 +105,7 @@ OpenLayers.Control.WMSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
     infoFormat: 'text/html',
     
     /**
-     * Property: vendorParams
+     * APIProperty: vendorParams
      * {Object} Additional parameters that will be added to the request, for
      * WMS implementations that support them. This could e.g. look like
      * (start code)
@@ -117,14 +117,14 @@ OpenLayers.Control.WMSGetFeatureInfo = OpenLayers.Class(OpenLayers.Control, {
     vendorParams: {},
     
     /**
-     * Property: format
+     * APIProperty: format
      * {<OpenLayers.Format>} A format for parsing GetFeatureInfo responses.
      *     Default is <OpenLayers.Format.WMSGetFeatureInfo>.
      */
     format: null,
     
     /**
-     * Property: formatOptions
+     * APIProperty: formatOptions
      * {Object} Optional properties to set on the format (if one is not provided
      *     in the <format> property.
      */