Split out the extension point registration code to its own function.

Split out the extension point registration code to its own function.

2009-02-27  Alexander Larsson  <alexl@redhat.com>

        * giomodule-priv.h:
        * giomodule.c:
	Split out the extension point registration code to its
	own function.

        * glocalvfs.c:
	Ensure extension points are registered before extending it.
	It might not have happened yet if g_vfs_get_local() is called.

svn path=/trunk/; revision=7919