Start pep8 work
Start pep8 work

I've only fixed one file so far, but it was a bit of a gnarly one since
some of the fields in `SubmitToMatchingForm` were real long. The
auto pep8 tool I'm using didn't even fix all of the long strings, so I
had to do some manual work. That's partly why I'm going to start a pull
request, so @kelseyq can take a look at the diff on this one file and
let me know whether she likes how I'm adjusting things.

SexualHealthInnovations/callisto-core,project-callisto/callisto-core,project-callisto/callisto-core,SexualHealthInnovations/callisto-core