Modifs to signal model escale and smearing systematics:
- changed treatment of global energy scale
- remove nuisances from formulas if they don't produce an effect
Fixed typo in energy scale formula in parametric model
Merge branch 'topic_signal_model_patches' of github.com:musella/h2gglobe into signal_model_patches
A few patches for systematic propogation in signal model.
Typo fix. Prevent printing nan in card
Make recursive fractions by default
Change foolish default settings
Merge pull request #254 from matthewkenzie/signal_model_patches

Signal model patches