. Big and juicy application/WCM model refactoring

- WARNING: this change requires a new DB as the WCM model has changed significantly, yes I have probably broken a few WCM things :)

Previously the following statements were true:
 - Most of the model constants were defined in the ContentModel class - including web-client Application specific model items
 - WCMModel class was a mix of WCM repository and WCM application model constants
 - The applicationModel.xml definition file contained both web-client Application and WCM application model definitions
 - The wcmModel.xml definition file contained both WCM repository and WCM application model definitions

The following statements are now true:
 - All web-client application specific model constants have been moved from ContentModel to a new model constants class ApplicationModel
 - A new WCM application model has been defined with the prefix "wca" and URI: http://www.alfresco.org/model/wcmappmodel/1.0
 - All WCM application specific model constants have been renamed/moved from ContentModel/WCMModel to a new model constants class WCMAppModel
 - The mix of WCM application specific model definitions in contentModel.xml and applicationModel.xml has been moved to a new definition file wcmAppModel.xml
 - A patch is not required for standard Alfresco as only WCM definitions have actually changed

. Fix to issue created during workflow id/name refactor
. Fix to allow forms in the Available Content Forms panel to have correct sandbox/username context for action dialog

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4448 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/forum/DiscussableAspect.java

@@ -24,6 +24,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.alfresco.i18n.I18NUtil;
+import org.alfresco.model.ApplicationModel;
 import org.alfresco.model.ContentModel;
 import org.alfresco.model.ForumModel;
 import org.alfresco.repo.policy.JavaBehaviour;
@@ -240,15 +241,15 @@ public class DiscussableAspect
            
            ChildAssociationRef childRef = this.nodeService.createNode(destNodeRef, 
                ForumModel.ASSOC_DISCUSSION,
-               QName.createQName(ForumModel.FORUMS_MODEL_URI, "discussion"), 
+               QName.createQName(NamespaceService.FORUMS_MODEL_1_0_URI, "discussion"), 
                ForumModel.TYPE_FORUM, forumProps);
          
            destinationForum = childRef.getChildRef();
 
            // apply the uifacets aspect
            Map<QName, Serializable> uiFacetsProps = new HashMap<QName, Serializable>(5);
-           uiFacetsProps.put(ContentModel.PROP_ICON, "forum");
-           this.nodeService.addAspect(destinationForum, ContentModel.ASPECT_UIFACETS, uiFacetsProps);
+           uiFacetsProps.put(ApplicationModel.PROP_ICON, "forum");
+           this.nodeService.addAspect(destinationForum, ApplicationModel.ASPECT_UIFACETS, uiFacetsProps);
         }
         
         return destinationForum;