Twenty Fourteen: rename transient `all_the_cool_cats` and make sure count is an integer before checking it. Props SergeyBiryukov for initial patch, fixes #26319.

git-svn-id: https://develop.svn.wordpress.org/trunk@26572 602fd350-edb4-49c9-b593-d223f7449a82
Twenty Fourteen: re-add the Header Text Customization Option. Props iamtakashi, fixes #26338; see #25540.

git-svn-id: https://develop.svn.wordpress.org/trunk@26573 602fd350-edb4-49c9-b593-d223f7449a82