Change GWT History to work when multiple applications are loaded within the same page.

Patch by: jhollenbach
Review by: jat, jgw

Review at http://gwt-code-reviews.appspot.com/1322801


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9637 8db76d5a-ed1c-0410-87a9-c151d255dfc7
3 files changed