Tidy up:

1) Comments
2) Facebook exception handling (would of been useful yesterday)
3) Addition of Facebook.getAppFriends to javascript API (more useful than existing all friends method)
4) Fixes to Document Library sample

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@7262 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/scripts/facebook/FacebookServletRuntime.java

@@ -38,7 +38,7 @@ import org.apache.commons.logging.LogFactory;
 
 
 /**
- * HTTP Servlet Web Script Runtime
+ * Facebook Canvas Page Servlet.
  * 
  * @author davidc
  */
@@ -47,6 +47,7 @@ public class FacebookServletRuntime extends FacebookAPIRuntime
     // Logger
     private static final Log logger = LogFactory.getLog(FacebookServletRuntime.class);
 
+    // Component dependencies
     protected FacebookService facebookService;
 
     /**
@@ -86,18 +87,27 @@ public class FacebookServletRuntime extends FacebookAPIRuntime
         return fbreq;
     }
     
+    /* (non-Javadoc)
+     * @see org.alfresco.web.scripts.WebScriptServletRuntime#getScriptUrl()
+     */
     @Override
     protected String getScriptUrl()
     {
         return "/facebook" + super.getScriptUrl();
     }
     
+    /* (non-Javadoc)
+     * @see org.alfresco.web.scripts.WebScriptRuntime#getStatusCodeTemplate(int)
+     */
     @Override
     protected String getStatusCodeTemplate(int statusCode)
     {
         return "/fbml." + statusCode + ".ftl";
     }
 
+    /* (non-Javadoc)
+     * @see org.alfresco.web.scripts.WebScriptRuntime#getStatusTemplate()
+     */
     @Override
     protected String getStatusTemplate()
     {