------------ Updated default Ca and Mg values to prevent pitzer model running at default conditions.
0.4.8
------------ Set minumum required Kgen version to 0.2.0.
0.4.7
------------ Updates to work with Kgen 0.2.0.
**Minor breaking change**: All TX quantities have been renamed to XT (i.e. TF and TS are not FT and ST to be consistent with BT nomenclature)
0.4.6
------------ Fix Omega Units
0.4.4
------------ Fix OmegaC
0.4.3
------------ Omega calculation.
Main code changes: * Added calculation of OmegaA and OmegaC. * Corrected calculation of conservative ions when S_out is specified. * Modified test_in_out.py to accommodate S_out handling.