Fix a bug in tab changing
Fix a bug in tab changing

When using deepLink options, the handleTabChange will fail if using a non-standard markup (if there are DOM levels between the `.tabs-title` and the `a`).

This commit fixes precisely that.
zurb/foundation,DaSchTour/foundation-sites,zurb/foundation,zurb/foundation-sites,zurb/foundation-sites,zurb/foundation,abdullahsalem/foundation-sites,DaSchTour/foundation-sites,abdullahsalem/foundation-sites,abdullahsalem/foundation-sites,denisahac/foundation-sites,denisahac/foundation-sites,denisahac/foundation-sites,zurb/foundation-sites