cleanup [versions] with more explanation.

stack/erp5/buildout.cfg

@@ -568,6 +568,16 @@ Products.CMFDefault = 2.2.2
 Products.CMFTopic = 2.2.1
 Products.CMFUid = 2.2.1
 
+# newer version requires zope.traversing>=4.0.0a2.
+zope.app.appsetup = 3.16.0
+
+# newer version requires zope.i18n>=4.0.0a3
+zope.app.publication = 3.14.0
+
+# BBB: Temporarily keep zope.app.testing awaiting we use newer version of CMF
+#      (for tests like testCookieCrumbler).
+zope.app.testing = 3.8.1
+
 # Pinned versions
 Flask = 0.9
 GitPython = 0.3.2.RC1
@@ -603,6 +613,7 @@ erp5.util = 0.4.31
 erp5diff = 0.8.1.5
 eventlet = 0.12.1
 feedparser = 5.1.3
+five.formlib = 1.0.4
 five.localsitemanager = 2.0.5
 fpconst = 0.7.2
 gitdb = 0.5.4
@@ -646,6 +657,6 @@ uuid = 1.30
 validictory = 0.9.0
 xml-marshaller = 0.9.7
 xupdate-processor = 0.4
-zope.app.appsetup = 3.16.0
-zope.app.publication = 3.14.0
-zope.app.testing = 3.8.1 ; BBB
+zope.app.debug = 3.4.1
+zope.app.dependable = 3.5.1
+zope.app.form = 4.0.2