Currectly handling GOC below and WOC above the reservoir The phase pressure of water and gas is set to inf when WOC and GOC is above and below the reservoir. This make sure the minimum saturation values are picked for these cases.
Fix sign error in the specified oil pressures at at WOC and GOC
The oil pressure at the contact for the special cases:

contact	location	po(contact)
GOC 	above 	-inf
GOC 	below 	+inf
WOC 	above 	-inf
WOC 	below 	+inf
New free function thresholdPressures().
Add new file.
Fix minor typo in comment.
Fix: eclipseState no longer shadowed.
Squash warnings by removing or commenting out unused parameters.
Suppress unused argument warning.

The eclState argument was added in PR#634, and may be needed later.
Until then, this silences the warning generated.
Merge pull request #641 from atgeirr/fix-warnings

Fix warnings
Merge pull request #639 from atgeirr/threshold-pressure

Threshold pressure function
Merge pull request #638 from totto82/fix_GOC_below

Currectly handling GOC below and WOC above the reservoir