a browser window, the right page (home, blank or last page visted) gets
loaded. clean up tasksOverlay.js, navigator.js and Ensure1Window()
use the browser's command line handler (remove duplicate code).
remove uri dispatching ui and js. r=mscott
git-svn-id: svn://10.0.0.236/trunk@61086 18797224-902f-48f8-a5cc-f745e15eee43
