* Add a cset, and it does not appear in the compare_to menu until another reload
    - main.py:119 -- need insert_cset to return id, name, and the 200 success,
      and then the jscript can insert the option into the select

* with future bills - recalculate bills button blows away growth!
    - BUT, I think just loading the bills page puts it back -- need to validate and fix if so

* can put in dumb dates - DO SOME INPUT VALIDATION, *sigh*
    - e.g. 0026-02-19 for a Gas bill

* kayo bills are wrong in between normal bills

* added an electricity bill by accident for 2018, that kills lots :(
    - something to do with missing year of data in quarterly bills - still an issue

* if change a bill (like Amazon), then its future estimates don't update