Move data to json (#15)

- Move hard coded countries and operators into json files
- Parse files at init time
- Update all handlers to expect unicode/lists
- Update tests
The only reason I wanted it in a 'data' format was so that I could import and export it more easily.  If I want to pull in data from another source, it's trivial for me to convert something from CSV to JSON, but kind of annoying to 'generate' python files.  For instance, if this were a python file and I wanted to generate it from some arbitrary external source, do I load it into a shell, print it to the screen, copy my buffer into an editor?  Or convert the python data structure to a string then write that to file?  That's what we're already doing here, except it's in a well established format.