Manage upstream removal of Date.prototype.toLocaleFormat (1)
Manage upstream removal of Date.prototype.toLocaleFormat (1)

Support for the non-standard Date.prototype.toLocaleFormat will be
removed "soon" in Firefox:
  https://bugzilla.mozilla.org/show_bug.cgi?id=818634

This first patch prevents, at least, getting broken due to the change.
A proper solution would be to ship our own implementation, if we still
want to keep the feature.

nohamelin/xseei