Refactor the gravity routines to be more readable. The 'guts' of the gravity code is the same, but has been divided into subroutines. In particular, the two gravity methods (MICCG and Hyperbolic) have been separated into their own modules.
Also tidied a few other unused variable/module import warnings.
Refactor the gravity routines to be more readable. The 'guts' of the gravity code is the same, but has been divided into subroutines. In particular, the two gravity methods (MICCG and Hyperbolic) have been separated into their own modules.
Also tidied a few other unused variable/module import warnings.