cujojs/when — pull request #380 by briancavalier (2014-10-22 19:34:58+00:00)
Title: Use alternating text node data to avoid MutationObserver polyfill issues

HT tildeio/rsvp.js#171

Apparently, MO polyfills might not trigger when setting an attribute to the same value. This change uses a bit flip to alternate between 0 and 1.