TurtleParser.hs: lots of changes, including the last of the not running conformance tests; also implemented proper handling of uri resolution, and correct handling of the '#' "this document" uri.
TurtleParser.hs: lots of changes, including the last of the not running conformance tests; also implemented proper handling of uri resolution, and correct handling of the '#' "this document" uri.

darcs-hash:20071026235448-db1bb-72d40e27f5c4314eb0602ba529abab8c14fcd202

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