Revert "Merge pull request #6 from toroidal-code/oasis"

This reverts commit 03a7b102ebf12c37c0649a1d1b4ba2aaebae00f4, reversing
changes made to 6a678286d337743393748a86478cef7a6906672d.

Conflicts:
	README.md
	_oasis
	_tags
	bindings.c
	myocamlbuild.ml
	rrhine
	setup.ml
Makefile, toplevel: build the project with rgc successfully