Added the no-arg add() widget method to the HTMLPanel. Review at http://gwt-code-reviews.appspot.com/1226801 Review by: rjrjr@google.com git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9462 8db76d5a-ed1c-0410-87a9-c151d255dfc7