Port pelican to python 3.

Stays compatible with 2.x series, thanks to an unified codebase.

tox.ini

@@ -1,15 +1,74 @@
+# This tests the unified codebase (py26-py32) of Pelican.
+# depends on some external libraries that aren't released yet.
+#
+# To run Pelican, you will already have checked out and installed them.
+#
+# Now we must tell tox about this package, otherwise tox would load the old
+# libraries from PyPi.
+# 
+# Run tox from the libraries source tree. It will save its package in
+# the distshare directory from where the tests here will pick it up.
+#
+# Do that for
+# https://github.com/dmdm/smartypants.git
+#
+# and typogrify:
+# https://github.com/dmdm/typogrify/tree/py3k
+#
+# and webassets:
+# https://github.com/dmdm/webassets/tree/py3k
+#
+#
+# CAVEAT:
+# -------
+#
+# 1/
+# Please be aware that my ports of typogrify and webassets are just 2to3'd.
+# They are not backwards compatible with Python 2.
+#
+# 2/
+# Webassets still has unresolved issues, so I deactivated it for Py32 tests.
+
+
 [tox]
-envlist = py26,py27
+envlist = py26,py27,py32
 
 [testenv]
 commands =
-    nosetests -s tests
     unit2 discover []
+    nosetests -s tests
+deps =
+
+[testenv:py26]
 deps =
     nose
     unittest2
     mock
     Markdown
-    BeautifulSoup
+    BeautifulSoup4
+    feedgenerator
     typogrify
     webassets
+
+[testenv:py27]
+deps =
+    nose
+    unittest2
+    mock
+    Markdown
+    BeautifulSoup4
+    feedgenerator
+    typogrify
+    webassets
+
+[testenv:py32]
+deps =
+    nose
+    unittest2py3k
+    mock
+    Markdown
+    BeautifulSoup4
+    feedgenerator
+#    {distshare}/smartypants-1.6.0.3.zip
+#    {distshare}/typogrify-2.0.0.zip
+#    {distshare}/webassets-0.8.dev.zip