Added styling images to export portfolio. This required adding the lams directory to the configuration file so that the css and image files could be copied using a file copy rather than using http (for performance).
Genericising the relationship between folders and workspaces - now one folder can be in many workspaces. Problem with the code though - when run from junit the relationship is set up okay, but when run in JBOSS the lams_workspace_workspace_folder records are not created.
