Made Tile.Image.IFrame an addin which will be used only if a layer is configured with the maxGetUrlLength option. This deprecates Layer.WMS.Post. r=tschaub (closes #2824)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10755 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

examples/WMSPost.html

@@ -161,6 +161,8 @@
     <div id="map" style="width: 512; height: 256; border: 1px solid red;"></div>
 
     <div id="docs">
+        <p><b>Deprecated.</b> See <a href="wms-long-url.html">wms-long-url.html</a>
+            for the recommended way to avoid long URLs.</p><p>
         This example uses a large SLD created on the client side to style a WMS
         layer.  This example uses a WMS.Post layer which transfers data via the
         HTTP-POST protocol. <br>
@@ -171,7 +173,7 @@
         instead. The default setting (["mozilla", "firefox", "opera"])
         excludes problematic browsers without removing the ability to use long
         request parameters, because all these browsers support long urls via
-        GET.
+        GET.</p>
     </div>
   </body>
 </html>