As per some irc discussion, Display a confirm dialog when user selects to use composite, but not composite engine is running.
As per some irc discussion, Display a confirm dialog when user selects to
use composite, but not composite engine is running.


git-svn-id: 0f3f1c46c6da7ffd142db61e503a7ff63af3a195@33291 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/e17,jordemort/e17,jordemort/e17