Add "Cookies" link to footers. Bug 1075252.

- Update "Legal Notices" to "Legal" and "Privacy Policy" to
  "Privacy" in custom/one-off footers.
Merge pull request #2396 from jpetto/bug-1075252-add-cookies-link-to-footer

Add "Cookies" link to footers. Bug 1075252.
Bug 1085476: Enable Travis CI.
Merge pull request #2398 from pmclanahan/switch-to-travis-1085476

Bug 1085476: Enable Travis CI.