import a spinner to indicate loading
show a loading animation while ajax works
add loading indicator

* add-loading-indicator:
  show a loading animation while ajax works
  import a spinner to indicate loading
replace about blurb with a simple attribution
make form elements full size (properly)
add the about your score text
add route & template for about score page
add link to about page under form
make about score look more like other sections
add about score page

* add-about-score-page:
  make about score look more like other sections
  add link to about page under form
  add route & template for about score page
  add the about your score text
whitespace touchup
fix bug wherein spinner spun on homepage

I have no idea why, but this route was firing for the homepage???  This
hack fixes that.  So :boom:?