Added support for link nodes in the repo filesystem driver.

Includes a patch to update existing link node file extensions from .lnk to .url, as CIFS requires .url files to generate the file:// links.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4947 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/service/cmr/model/FileInfo.java

@@ -43,6 +43,16 @@ public interface FileInfo
      */
     public boolean isFolder();
     
+    /**
+     * @return true if this instance represents a link to a node
+     */
+    public boolean isLink();
+    
+    /**
+     * @return Return the reference to the node that this node is linked to
+     */
+    public NodeRef getLinkNodeRef();
+    
     /**
      * @return Returns the name of the file or folder within the parent folder
      */