DEPENDS cleanup of packages/meta. This doesn't fix all DEPENDS here but does remove...

DEPENDS cleanup of packages/meta. This doesn't fix all DEPENDS here but does remove a large chunk of the incorrect ones. Some entries that shouldn't be present have been marked FIXME as they indicate problems elsewhere in the metadata. Help from the opie/gpe gurus needed. I've not touched the NSLU code as I suspect they'd rather do this themselves?