buildout: Plone 3 without Zope 2.12.x

Currently, running plone.recipe.zope2instance may fetch version 4.0a1 of the recipe, and this recipe, meant to build a Zope instance, starts pulling Zope 2.12.1 because of a dependency on a Zope egg in the recipe.

To fix this, nail plone.recipe.zope2instance to the current version, 3.6.

Currently, I use this in my plone 3 buildout:

[versions]
plone.recipe.plone = 3.1
plone.recipe.zope2instance = 3.6