Scaling of capillary pressure.
SWATINIT: Initialisation and capillary pressure scaling.
Adjustments for vanishing oil phase.
Make use of EclipseState for EQLNUM and SWATINIT.
Included inititalisation of surface volumes.
Find-ewoms.cmake: update prerequisites
PvtLiveOil: fix ordering of arguments

the strange thing is that this worked as-is. The only explaination
which I have for this is that these code paths are unused...
Merge pull request #607 from osae/swatinit

Scaling of capillary pressure / initialisation from kw SWATINIT.
Merge pull request #611 from andlaus/update_ewoms_prereqs

Find-ewoms.cmake: update prerequisites
Merge pull request #613 from andlaus/PvtLiveOil_fix_argument_ordering

PvtLiveOil: fix ordering of arguments