Merge pull request GeoNode#3298 from jondoig/patch-11

Mention ISO and describe CSW in developer page

geonode/templates/developer.html

@@ -27,7 +27,7 @@ <h3>GeoNode Software</h3>
     </ul>
 
     <h3>What are OGC Services?</h3>
-    <p>The data in this application is served using open standards endorsed by the <a href="http://opengeospatial.org/">Open Geospatial Consortium</a>; in particular, WMS (Web Map Service) is used for accessing maps, WFS (Web Feature Service) is used for accessing vector data, and WCS (Web Coverage Service) is used for accessing raster data.  WMC (Web Map Context Documents) is used for sharing maps. You can use these services in your own applications using libraries such as OpenLayers, GeoTools, and OGR (all of which are open-source software and available at zero cost).</p>
+    <p>The data in this application is served using open standards endorsed by ISO and the <a href="http://opengeospatial.org/">Open Geospatial Consortium</a>; in particular, WMS (Web Map Service) is used for accessing maps, WFS (Web Feature Service) is used for accessing vector data, and WCS (Web Coverage Service) is used for accessing raster data.  WMC (Web Map Context Documents) is used for sharing maps. You can use these services in your own applications using libraries such as OpenLayers, GeoTools, and OGR (all of which are open-source software and available at zero cost). Additionally, CSW (Catalog Service for the Web) supports access to collections of descriptive information (metadata) about data and services.</p>
 
     <h3>What is GeoWebCache?</h3>
     <p>GeoWebCache provides mapping tiles that are compatible with a number of mapping engines, including Google Maps, Bing Maps and OpenLayers. All the data hosted by GeoNode is also available through GeoWebCache. GeoWebCache improves on WMS by caching data and providing more responsive maps.</p>