text fix on fa14 course page
Remove the old index file and replace with the course page
Write a new index.html home page for bjc-r

Add the bjc logo to the repo
Merge branch 'gh-pages' of github.com:beautyjoy/bjc-r into gh-pages

* 'gh-pages' of github.com:beautyjoy/bjc-r:
  Fix quiz in simulations
  Fix the link class for some self tests on topic pages
  Fix the link class for some self tests on topic pages
  Fix the link class for some self tests on topic pages
  Rm variables page with bad name
  Fix the broadcast quiz
  Random self test: remove the extra bolding
  Buggy Sqaure Quiz typo fixes
  Improve total turning Quiz title
  Total Turning Quiz Formatting
  Fix total turning quiz
  Forever Quiz: Typo fix
  Quiz title update
  Forever self-test: fix question identifier
  Forever sefl-test: typo fixes
  Forever self-test: shuffle answers