No longer using rhosatPure in Akasaka, just using the vapor pressure

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
In REFPROP for single-phase, fix unit conversions for single phase

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
removed Web/Fluids/Cyclohexane.rst

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>