Converted NTriplesParser back to using Parsec3.
Converted NTriplesParser back to using Parsec3.

darcs-hash:20081207041735-ce9ea-8f2877416d33a1b71c30248f5084cde321f815f4

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