added config for building test runners for all relevant Python versions

test_all_pythons.cfg

+[buildout]
+extends = buildout.cfg
+parts += test24 test25 test26 oltest24 oltest25 oltest26
+
+# The [test2X] sections below are to make testing with various Python versions
+# easier.  You'll need entries in your default.cfg that point to the location
+# that your various versions of Python are installed.  Like so:
+#
+# [python2.4]
+# executable = /usr/local/bin/python2.4
+#
+# And then run "bin/buildout install test24 test25 test26" to build the
+# version-specific test scripts.  Once that's done you ran run "bin/test24"
+# (etc.).
+
+[test24]
+python = python2.4
+recipe = ${test:recipe}
+eggs = ${test:eggs}
+
+[test25]
+python = python2.5
+recipe = ${test:recipe}
+eggs = ${test:eggs}
+
+[test26]
+python = python2.6
+recipe = ${test:recipe}
+eggs = ${test:eggs}
+
+[oltest24]
+python = python2.4
+recipe = ${oltest:recipe}
+eggs = ${oltest:eggs}
+defaults = ${oltest:defaults}
+
+[oltest25]
+python = python2.5
+recipe = ${oltest:recipe}
+eggs = ${oltest:eggs}
+defaults = ${oltest:defaults}
+
+[oltest26]
+python = python2.6
+recipe = ${oltest:recipe}
+eggs = ${oltest:eggs}
+defaults = ${oltest:defaults}