During a module transition, remove all enqueued JS jobs. Seems to fix the 
timeouts in UISuite.

Patch by: amitmanjhi
Review by: rjrjr (desk review)



git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@6536 8db76d5a-ed1c-0410-87a9-c151d255dfc7