Expose subjects count in template (TRELLO#33).
Merge branch 'master' of github.com:ox-it/moxie-js-client

* 'master' of github.com:ox-it/moxie-js-client:
  corrected h3 to h2 on course detail page, normalised h3, h2 styles for now
  added heading to courses by skill
  remove hover effect on list items