zurb/foundation-sass — pull request #19 by bradendouglass (2012-01-16 21:06:20+00:00)
Title: .centering seemed to be missing from the _grid section

Tested on Firefox...whatever the newest one is...56/firebug? and Chrome Stable-Release branch and provided dev tools. I checked the downloaded zip from ZURBFoundation's site and the class appears to be in those files. The result was I copied the styles from the d/led foundation.css and slotted it into _grid.sass (good on you all for using the cleaner syntax!). Hopefully this makes a bit of sense.