Added parameter checking to updatePageState method
Merge branch 'PortletHub' of j:\git\pluto-git into PortletHub
Added helper functions to PortletParameters & PortletState objects. Began adapting demo to use the helper functions.
Merge branch 'PortletHub' of e:\git\pluto-git into PortletHub
Made a number of changes towards completion of portlet hub functionality:

1) Added accessor helper functions to the PortletParameters and PortletState
objects
2) Modified portlet JavaScript code to use the new accessors
3) Used jslint to improve the portletHubImpl.js code
4) Worked on implementation of the portlet hub action functionality through
use of a supplied form element. The JavaScript implementation uses the XHR2
FormData object.
5) Moved Pluto to a dependency on servlet API v3.0 in preparation for
implementation of multipart form support (needed to support the XHR2
FormData form submission)
progress toward multipart form handling
updated taglib URIs from ...sun.com/jstl... to ...sun.com/jsp/jstl... to make them work with servlet 3
Added additional debug output for part processing
Changed servlet, jsp, and taglib dependencies to use the Apache versions of
the artifacts. Moved to servlet version 3.0, JSP & EL version 2.2,
which correspond to tomcat version 7.0.50. Moved to version 1.2.1 of the Apache
standard tag library.
Adapted several JSPs to use updated URIs for the tag libraries.