Fixing a bug in IE6 where the styles on some Cell Widget items do not update, causing the items to disappear. Adding zoom:1 fixes the problem.

Review at http://gwt-code-reviews.appspot.com/1193801

Review by: pdr@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9376 8db76d5a-ed1c-0410-87a9-c151d255dfc7