wip: ERP5: new software release targeting Python 3.x

software/erp5/software-py3.cfg

+[buildout]
+extends =
+  ../../stack/erp5/buildout-py3.cfg

stack/erp5/buildout-py3.cfg

+[buildout]
+extends =
+  ../../component/python3/buildout.cfg
+  buildout.cfg
+# Exact version of Zope 4
+  versions.cfg
+  versions-prod.cfg
+
+python = python3.5
+
+# XXX: ignore for now
+parts -=
+# Require a version compatible with Py3 (also need to update patches)
+  rdiff-backup
+# VVV No Py3 support VVV
+  ocropy
+  hookbox
+# ^^^ No Py3 support ^^^
+
+[rdiff-backup]
+recipe =
+
+[rdiff-backup-build]
+recipe =
+
+[ocropy]
+recipe =
+
+[hookbox]
+recipe =
+
+[eggs]
+eggs -=
+# tracemalloc is now part of Python 3.4!
+  pytracemalloc
+# XXX: ignore for now
+# VVV No Py3 support VVV
+  ocropy
+  ${ocropy:egg}
+  PyXML
+  threadframe
+  suds
+  xupdate_processor
+  SOAPpy
+  fpconst
+# ^^^ No Py3 support ^^^
+
+[versions]
+supervisor = 4.1.0
+# zc.recipe.egg 2.0.7 requires zc.buildout>=2.12.0
+# From buildout.cfg
+zc.recipe.egg = 2.0.3+slapos003
+pyasn1-modules = 0.2.7
+pyasn1 = 0.4.8