Pin software versions.

The version of z3c.pt, Chameleon and sourcecodegen were not pinned in
ERP5-Zope2.
We pin them to the same version used in our client project.

stack/erp5-zope2/zope-versions.cfg

@@ -2,6 +2,7 @@
 Zope2 = 2.13.30
 AccessControl = 2.13.16
 Acquisition = 2.13.12
+Chameleon = 3.2
 DateTime = 2.12.8
 DocumentTemplate = 2.13.6
 ExtensionClass = 2.13.2
@@ -54,6 +55,7 @@ repoze.tm2 = 1.0
 repoze.who = 2.0
 scandir = 1.10.0
 six = 1.14.0
+sourcecodegen = 0.6.14
 tempstorage = 2.12.2
 toml = 0.10.0
 tox = 3.14.4
@@ -61,6 +63,7 @@ transaction = 1.1.1
 typing = 3.7.4.1
 virtualenv = 20.0.4
 z3c.checkversions = 1.1
+z3c.pt = 3.1.0
 zExceptions = 2.13.0
 zLOG = 2.11.2
 zc.lockfile = 1.0.2

stack/erp5-zope2/ztk-versions.cfg

@@ -71,6 +71,7 @@ zope.documenttemplate = 3.4.3
 
 # Dependencies
 # Needed for the mechanize 0.1.x.
+Chameleon = 3.2
 ClientForm = 0.2.10
 distribute = 0.6.49
 docutils = 0.7
@@ -86,6 +87,7 @@ python-gettext = 1.0
 pytz = 2013b
 RestrictedPython = 3.6.0
 setuptools = 12.2
+sourcecodegen = 0.6.14
 Sphinx = 1.0.8
 transaction = 1.1.1
 unittest2 = 0.5.1
@@ -107,6 +109,7 @@ mr.developer = 1.25
 tl.eggdeps = 0.4
 nose = 1.1.2
 z3c.checkversions = 0.4.2
+z3c.pt = 3.1.0
 z3c.recipe.compattest = 0.12.2
 z3c.recipe.depgraph = 0.5
 zope.kgs = 1.2.0