drop python <2.6 support

CHANGES.rst

@@ -4,6 +4,9 @@ Changelog
 3.3 (2013-02-08)
 ----------------
 
+* Drop support for Python < 2.6.
+  [thet]
+
 * Allow vGeo to be instantiated with list and not only tuples of geo
   coordinates. Fixes #83.
   [thet]

README.rst

@@ -11,7 +11,7 @@ with Python.
     :Code: http://github.com/collective/icalendar
     :Mailing list: http://github.com/collective/icalendar/issues
     :Dependencies: `setuptools`_ and since version 3.0 we depend on `pytz`_.
-    :Tested with: Python 2.4 - 2.7
+    :Tested with: Python 2.6, 2.7
     :License: `BSD`_
 
 ----

tox.ini

@@ -1,7 +1,5 @@
 [tox]
-envlist = py24,py25,py27
-#envlist = py24,py27
-#envlist = py24,py25,py26,py27,py32
+envlist = py26,py27
 
 [testenv]
 deps =