Outputting form JSON into the output textarea. We may want to make the t...

Outputting form JSON into the output textarea. We may want to make the textarea readonly. In addition, I changed the 'position' input to better reflect the information needed for the domain section of each step. Resolves Issue #3. 

We can also go back to using the position dropdowns (DI, SI, etc) for the domain, but would still need a way to add JSON information about the selection. This solution was just easier.