Found python 3.3 also not happy with more recent Sphinxes

Author: bitprophet

.travis.yml

@@ -23,6 +23,11 @@ matrix:
       env: SPHINX=">=1.5,<1.6"
     - python: 2.6
       env: SPHINX=">=1.6,<1.7"
+    # And they dropped Python 3.3 support at some point too.
+    - python: 3.3
+      env: SPHINX=">=1.5,<1.6"
+    - python: 3.3
+      env: SPHINX=">=1.6,<1.7"
 install:
   # For some reason Travis' build envs have wildly different pip/setuptools
   # versions between minor Python versions, and this can cause many hilarious