Log Message:
Updated package to latest version, 1.2.8, and made package compatible with
latest version of ocaml and its framework. Discussed on packages@ and
OK'd by jperkin.

Changes include:
1.2.8: Build against ocamlnet-4.1. Support -safe-string
1.2.7: tweaking support for oasis.
1.2.6: Adding _oasis file.
1.2.5: Build against ocamlnet-4.
1.2.4: Fixed bug in namespace-aware parsing (thanks to ygrek and Thomas
       Leonard)