Minor hacks to support FBSD-STD and RHL-STD as generic OSIDs. These
have been added as OSIDs so that the parser accepts them. os_setup maps them into whatever equiv OSID is loaded on the target node, according to the OS slot of the osid table entry. If no mapping can be made (no equiv OS loaded, as defined by the partitions table) os_setup fails. I've also changed the web page node control form so that the only OSIDs you can set for a node are the ones loaded (partitions table) or OSKit kernels (osid table entry has a path).