Handle user and domain. Don't allow automount when either is set.
Handle user and domain.
Don't allow automount when either is set.

Original git commit by Alexander Larsson <alex@greebo.(none)> at 1171366286 +0100

svn path=/trunk/; revision=340

gicmo/gvfs,philipl/gvfs,xkahn/gvfs-cmis,halfline/gvfs,thiblahute/gvfs,xkahn/gvfs-cmis,xkahn/gvfs-cmis,gicmo/gvfs,thiblahute/gvfs,cpatulea/gvfs,gicmo/gvfs,philipl/gvfs,philipl/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,halfline/gvfs,cpatulea/gvfs,halfline/gvfs