The current evaluation page is a little complicated, so I simplified it a bit.
Default all evaluations to prod=true (adds a migration so that the prod field is true by default in the db).
Hide some of the more advanced, rarely changed fields in the evaluation form under an accordion.
Reorder some of the other evaluation form fields.
Don't show MC or FR questions in the preview on the show evaluation page, if there are none. (fixes issue #35)
Always replace data when uploading a new file to the evaluation.
Hide the "preview random task" link if there are no tasks.
When previewing a random task, render the task template instead of redirecting to it, so that it's easier to preview several different random tasks (by refreshing, instead of going back to the evaluation page and clicking the preview link again).
The current evaluation page is a little complicated, so I simplified it a bit.
Here's what the new show page looks like: