[backend] create a view that render results in JSON.
[frontend] rename /about.html partial to /done.html.
[frontend] prepare frontend to show results.
Merge branch 'results_api_view'

* results_api_view:
  [frontend] prepare frontend to show results.
  [frontend] rename /about.html partial to /done.html.
  [backend] create a view that render results in JSON.