Updated Javascript wrapper to use SI units

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
EES uses ~ as delimiter character

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Ancillary fitter fits and injects curves for all fluids

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
F factors included for all pairs in mixture excess parameters

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Added dhdp|T and reverted change to not allow input to equal output

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
More outputting in JSON for v5

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge branch 'master' of https://github.com/ibell/coolprop