remove arrow key navigation

this was annoying because you often lost changes you were working on in
the code editor
Merge branch 'fix_keyboard_shortcuts'

* fix_keyboard_shortcuts:
  remove arrow key navigation
Merge pull request #2 from MattKunze/master

remove keyboard navigation
Merge branch 'master' into gh-pages

* master:
  remove arrow key 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
Merge branch 'master' into gh-pages

* master:
  pad HTML results so they don't overlap the close button
  fixing typo
  remove arrow key navigation
Merge branch 'gh-pages' of github.com:WebDevBootcamp/markdown-presenter into gh-pages

* 'gh-pages' of github.com:WebDevBootcamp/markdown-presenter:
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
Merge branch 'master' into gh-pages

* master:
  support common style declarations, jQuery binding improvements
  add bootstrap theme, whitespace cleanup
adding missing css file
rebuild pages