"hw_w01_d02_submission Complete Calculator HW"

I enjoyed working on this assignment, but I was definitely confused (calc.rb is my original attempt) on how I was supposed to implement it at first. Once we saw how it should be set up, it became definitively easier. Instead of trying to fix the code, I started again from the template (calc2.rb) and went from there. 

I didn't have time to have all the bells and whistles I wanted, but there's still a good amount in the advanced panel.

-Ryan