Simplify ztk-versions file, remove some really old version pins.

buildout.cfg

 [buildout]
 extensions = mr.developer
 
-allow-hosts =
-    *.python.org
-    *.zope.org
-    argparse.googlecode.com
-
 allow-picked-versions = false
-always-accept-server-certificate = true
 develop = .
 extends =
     sources.cfg
@@ -20,7 +14,6 @@ parts =
     allpy
     sphinx
     checkversions
-    wsgi
 sources-dir = develop
 auto-checkout =
     AccessControl
@@ -32,7 +25,7 @@ recipe = zc.recipe.testrunner
 initialization =
     import sys
     import warnings
-    if sys.version_info >= (2, 7): warnings.simplefilter('default')
+    warnings.simplefilter('default')
 eggs = Zope2
 
 
@@ -82,6 +75,7 @@ eggs =
     Products.PythonScripts
     Products.StandardCacheManagers
 
+
 [allpy]
 recipe = zc.recipe.egg
 eggs = ${alltests:eggs}
@@ -97,18 +91,7 @@ outputs = html
 script-name = make-docs
 extra-paths = ${buildout:directory}
 
+
 [checkversions]
 recipe = zc.recipe.egg
 eggs = z3c.checkversions [buildout]
-
-
-[wsgi]
-recipe = zc.recipe.egg
-eggs =
-    Zope2
-    repoze.who
-    repoze.tm2
-    repoze.retry
-    Paste
-    PasteDeploy
-    PasteScript

ztk-versions.cfg

@@ -71,17 +71,23 @@ Jinja2 = 2.8
 MarkupSafe = 0.23
 PasteDeploy = 1.5.2
 Pygments = 2.1.3
+RestrictedPython = 3.6.0
 Sphinx = 1.4.5
 WebOb = 1.6.1
 WebTest = 2.0.21
 ZConfig = 3.1.0
+ZEO = 4.1.0
+ZODB = 4.3.1
+
 alabaster = 0.7.8
+collective.recipe.cmd = 0.11
 coverage = 4.1
 docutils = 0.12
 extras = 1.0.0
 imagesize = 0.7.1
+lxml = 3.6.0
+mr.developer = 1.34
 nose = 1.3.7
-ordereddict = 1.1
 persistent = 4.2.1
 py = 1.4.31
 python-gettext = 3.0
@@ -93,33 +99,11 @@ six = 1.10.0
 snowballstemmer = 1.2.1
 testtools = 2.2.0
 transaction = 1.6.1
-z3c.recipe.sphinxdoc = 1.0.0
+unittest2 = 1.1.0
+z3c.checkversions = 0.5
 zc.buildout = 2.5.2
 zc.lockfile = 1.2.1
 zc.recipe.egg = 2.0.3
 zc.recipe.testrunner = 2.0.0
 zdaemon = 4.1.0
 zodbpickle = 0.6.0
-
-# Dependencies for Python 2
-RestrictedPython = 3.6.0
-zope.untrustedpython = 4.0.0
-
-Paste = 2.0.3
-PasteScript = 2.0.2
-unittest2 = 1.1.0
-# Should just be ported.
-zc.resourcelibrary = 1.3.4
-zope.mkzeoinstance = 3.9.6
-ZODB = 4.3.1
-ZEO = 4.1.0
-
-# toolchain
-argparse = 1.4.0
-lxml = 3.6.0
-mr.developer = 1.34
-repoze.sphinx.autointerface = 0.8
-collective.recipe.cmd = 0.11
-# Missing py3 port
-z3c.checkversions = 0.5
-z3c.recipe.compattest = 1.0