nitpick - don't display colon for null/undefined results
Merge pull request #2 from MattKunze/master

remove keyboard navigation
Merge branch 'master' of github.com:WebDevBootcamp/markdown-presenter

* 'master' of github.com:WebDevBootcamp/markdown-presenter:
  remove arrow key navigation
fixing typo
pad HTML results so they don't overlap the close button
add bootstrap theme, whitespace cleanup
support common style declarations, jQuery binding improvements

hook jQuery to remove event bindings when reapplying samples. this
keeps handlers from building up