Updated gitignore
Rewritten refprop function to replace former refprop+refpropv functions.
* vector ready;
* tests;
* uncertainties (to come);
* unified syntax;
* inputs variability tolerance;
Deleted obsolete function refpropv.m
Uncertainties basically OK. Need testing and polishing.
Polished syntax. Minor fixes.
Improved documentation.
Updated README file with basic description.