Version 0.7

See readme. Mostly internal restructuring + Crisp model + periodic table etc included

v0.6.0

Version 0.6.0 includes some reorganization of the code, as well as modification to the zircon saturation code (and the way it is called). This allows to use a larger choice of zircon saturation models, and potentially allows users to write their own.

v0.5.03

GCDModel version 0.5.03 (before reorganization of the code).