v1.1.12

1. New unit system in place using pint
2. Corrected model.from_cobra method to set genes into all_genes, and related methods
3. Updated methods to account for units in stoichiometric coefficients, bounds, and reconstruction parameters
4. Updated DNA replication functions to consider a symbolic expression
5. Extended coralME M-models to consider cofactor information in reactions: New reaction.functional method based on cobrapy's reaction.functional, and modified model.construct_lp_problem to determine not functional reactions
6. Updated util.model2excel and util.excel2model functions to save and read M-models with cofactor data in reactions
7. Updated save and read JSON files, to correct the lack of values from v1.0 files
8. New feasibility limit and minor style changes such as int to floats
9. Fixed deprecated methods, such as Biopython's SeqFeature.strand and cobrapy's gene.parse_string