HubSpot/tether — pull request #33 by Cinamonas (2014-03-05 12:13:05+00:00)
Title: Flip element when it's attached to target's center with `together` attachment

When element is attached vertically and/or horizontally to target's center through `together` attachment, the element's attachment stops *flipping*. [This fiddle](http://jsfiddle.net/TuFnv/embedded/result/) illustrates the issue.

I believe this is an unexpected behaviour, which is fixed by this pull request.