TurtleParser.hs: a few lines that I hadn't saved, stubs for collection conversion.
TurtleParser.hs: a few lines that I hadn't saved, stubs for collection conversion.

darcs-hash:20071017071231-db1bb-2a8c463399a6b456065797cc45b423a5cb91727b

LeifW/rdf4h,ddssff/rdf4h,cordawyn/rdf4h,jutaro/rdf4h