Added version information to @deprecated javadoc tags
Updates for Portlet State concept based on feedback.
minor fixes for overview document; clarified description in MutablePortletParameters #add() and #set() methods.
Resolved PORTLETSPEC3-43. The classes PortletParameters and
MutablePortletPrameters contained methods with long, redundant names.
The names were shortened to remove redundancy. Updated the
diagram to reflect the new names.
Also fixed several typos in the javadoc comments of other classes.
corrected typo in PortletParameters