some more validation of second order partial derivatives in the single-phase region
some more validation of second order partial derivatives in the single-phase region
use `Inline=true` for some of the single-line-functions,

add two missing functions dewEntropy and bubbleEntropy
add missing function saturationTemperature_derp_sat
testing setSat functions again
MM HMDS create dummy
HMDS typo
Helium: correct surface tension, remove viscosity and thermal conductivity
HMDS ancillary equations
set ReferenceState for HMDS to NBP
HMDS testing
set critical values of h and s
set default values for ancillaryCoefficients;

print out coefficients for HDMS
testing HMDS ancillary equations
remove unused Coeffs
fluids with NBP reference state can just  use 0 as start value for s and h
print coeffs of HDMS
testing convergence of setSat functions close to the critical point,

also see issue #16
update README.md
update references