rename CustomCalc to Calc

In 2014_script.yml I refer to the app as Calc. Elsewhere I was referring to it a CustomCalc. This used to work, which leads me confused as to how (it's possible I hacked game id manually in rails console or something).

Any gotchas to changing the name like this? I could also just change from Calc -> CustomCalc in 2014_script.yml, but I think it makes more sense to just call this Calc.