dev-python: merge most python2 and python3 recipes.

* adjust recipes depending on these, ie python_dateutil=>dateutil_python.
* switch architectures to any for relevant python recipes.
* bump versions for retext, argh, beautifulsoup, cssselect, dateutil,
docutils, fonttools, html2text, httplib2, lxml, mechanize, mock, paramiko,
pillow, pip, pygments, requests, twisted, urllib3, zope_interface.

dev-util/buildbot_slave/patches/buildbot_slave-0.9.5.patchset

@@ -0,0 +1,22 @@
+From 98719cec51efeaa02526088d328f8cf24b641ac4 Mon Sep 17 00:00:00 2001
+From: Jessica Hamilton <jessica.l.hamilton@gmail.com>
+Date: Fri, 20 Jun 2014 04:58:54 +0000
+Subject: logwatcher.py: fix path to tail on Haiku
+
+
+diff --git a/buildbot_worker/scripts/logwatcher.py b/buildbot_worker/scripts/logwatcher.py
+index d750358..7df3061 100644
+--- a/buildbot_worker/scripts/logwatcher.py
++++ b/buildbot_worker/scripts/logwatcher.py
+@@ -73,7 +73,7 @@ class LogWatcher(LineOnlyReceiver):
+         if platform.system().lower() == 'sunos' and os.path.exists('/usr/xpg4/bin/tail'):
+             tailBin = "/usr/xpg4/bin/tail"
+         else:
+-            tailBin = "/usr/bin/tail"
++            tailBin = "/bin/tail"
+         self.p = reactor.spawnProcess(self.pp, tailBin,
+                                       ("tail", "-f", "-n", "0", self.logfile),
+                                       env=os.environ,
+-- 
+2.11.0
+