Added some work on solutions
included solutions in props function, testing is needed
More changes, added documentation for solutions
Added more documentation, ready to convert the old brines to the new format
Added Psat as output, optimised polynomials through pass-by-reference (thanks Ian), wrote brine documentation
Converter function for old parameters written, something is wrong with the entropy... (as always)...
Played around with polynomials, the entropy issue seems to be fixed. However, now I wonder why the internal energy for brines decreases with increasing temperature, this does not affect the normal incompressible fluids.
Changed the base class for incompressibles again, the problems with internal energy and entropy of solutions should be solved (code update pending), formulae and description has already been added to documentation.
Finished solution and brine structure, did not remove old fluids, yet.
Merge branch 'refs/heads/master' into solutions

Conflicts:
	CoolProp/IncompLiquid.h
	CoolProp/gitrevision.h
Added Dynalene fluids, improved fitting procedure.
Merge branch 'refs/heads/solutions'