Clean rebuild of the plugin.
(I noticed some of the binary has DebugLevel was still set to spam)

Review at http://gwt-code-reviews.appspot.com/1638803

Review by: conroy@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10872 8db76d5a-ed1c-0410-87a9-c151d255dfc7