Refactor modify_for_combinations_of_demographics so that it creates a blank DF and fills that in with results rather than adding individual rows
Join on survey code when possible
If both demographics and results have survey code, join on survey code and refactor
Pull results for multiple surveys
Flag for cuts to create that adds survey code to all cuts
Include survey_code in result output if there is more than one survey listed
Flag for historical on cuts to create only includes those cuts marked to be on historical menu
Copy of create from config that does historical stuff (include new input of results and demographics)
Menu item on cuts create seperate menu for each config
Numeric calculator nfv only uses required columns
Fixed categorical net formatted values
Fixed several minor issues
Commit before significance re-write
Refactored skellam computations
Fixing bugs that cropped up in refactor
Calculator is cached
Minor update so that it runs properly