ICE-8719 Modified before session expiry popup to close when the session has expired.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@36083 1de00972-ac04-4911-a46b-06793c8d78d9
ICe-8719 Updated bridge support, new on**** registrations functions now return closure that removes the registered callback.

git-svn-id: http://anonsvn.icesoft.org/repo/icefaces3/trunk/icefaces@36085 1de00972-ac04-4911-a46b-06793c8d78d9