* components/help/hyperbola-main.c: (main):
	Fix bug 8172 - Nautilus spews GConf error upon repeated clicking
	of "help"

	Intiialize preferences before creating the factory in case code in
	the factory needs to use prefernces.

	* src/nautilus-application.c: (nautilus_application_startup):
	Dont do the GMC migration if we are about to kill the nautilus
	shell.  Fixes criticals when 'nautilus --quit' is used.