make OpenLayers.Layer.WFS and OpenLayers.Layer.GML deprecated and provide instructions on what to do now

git-svn-id: http://svn.openlayers.org/trunk/openlayers@9849 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Layer/GML.js

@@ -12,6 +12,9 @@
  * Class: OpenLayers.Layer.GML
  * Create a vector layer by parsing a GML file. The GML file is
  *     passed in as a parameter.
+ * *Deprecated*.  To be removed in 3.0.  Instead use OpenLayers.Layer.Vector
+ *     with Protocol.HTTP and Strategy.Fixed. Provide the protocol with a 
+ *     format parameter to get the parser you want for your data.
  *
  * Inherits from:
  *  - <OpenLayers.Layer.Vector>

lib/OpenLayers/Layer/WFS.js

@@ -12,6 +12,8 @@
 
 /**
  * Class: OpenLayers.Layer.WFS
+ * *Deprecated*.  To be removed in 3.0.  Instead use OpenLayers.Layer.Vector
+ *     with a Protocol.WFS and one or more Strategies.
  * 
  * Inherits from:
  *  - <OpenLayers.Layer.Vector>