OPM/opm-autodiff — pull request #138 by totto82 (2014-05-16 14:13:52+00:00)
Title: Set phase condition to free gas and free oil for water only cases

The water only case are now classified as free gas / oil in order to
avoid the usage of the rs / rv variable as these will be trivial.

It is a bit misleading to call the water only case free oil or free gas. A more consistent solution may be to add a waterOnly condition to the phasePresence class in Blackoilphases and check for this in the variableState function.

Runs a few iterations on Norne without NaNs