Changes ruby bundle source to https because http is deprecated
Merge branch 'gh-pages' of github.com:heitzke/a11yproject.com into heitzke-gh-pages

* 'gh-pages' of github.com:heitzke/a11yproject.com:
  adding in little disclaimer about the form role
  Adding in form role to checklist, skip nav link
Includes anemone gem for rake check_links task and minified stylesheets
removing skip nav link, as we already have appropriate aria landmark roles, thus not necessary to have the skip nav link present