Comment 18 for bug 1647467

The yakkety one is basically an upstream release (1.3.2), hence a bit more automated churn in there to update the version number by the build system.

I won't attach the one for 1.2.18 for xenial-proposed, as that's basically the same as 1.3.2, just against 1.2.17 - and we need to get 1.2.15 done first.