. First cut of the Externalised UI Actions

- XML Config for UI actions: web-client-config-actions.xml
   - commented examples are included in the config, I will write up a Wiki page to document it properly :)
 - Named groups of actions can also be reused across screens (where as previously individual ActionLink components had to be coded up for each screen by hand in the JSP)
 - Individual Actions can be reused across action groups or defined against a specific action group
 - UI actions for Browse (Create, More, Document and Space actions), Document and Space details pages now externalised into config
 - Refactoring of other JSPs to use externalised config - big reduction in hand coded JSF tags and code duplication between pages
. Document Details and Space Details pages now have Actions panel on the right hand side instead of an Actions drop-down menu
. Several unreported minor bugs fixed where actions conditions or listeners were inconsistent between browse and details pages

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2553 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/action/ActionEvaluator.java

@@ -30,5 +30,13 @@ import org.alfresco.web.bean.repository.Node;
  */
 public interface ActionEvaluator
 {
+   /**
+    * The evaluator should decide if the action precondition is valid based on the appropriate
+    * logic and the properties etc. of the Node context and return the result.
+    * 
+    * @param node    Node context for the action
+    * 
+    * @return result of whether the action can proceed.
+    */
    public boolean evaluate(Node node);
 }