We need a newer setuptools on older versions of Python to be able to install...

We need a newer setuptools on older versions of Python to be able to install recent Sphinx because of its use of environment markers.

.travis.yml

@@ -17,7 +17,7 @@ matrix:
           python: 3.6
 install:
     - pip install -U pip
-    - pip install zc.buildout
+    - pip install -U setuptools zc.buildout
     - buildout $BUILOUT_OPTIONS
 script:
     - if [[ $TRAVIS_PYTHON_VERSION != pypy* ]]; then bin/coverage run bin/coverage-test -v1j99; fi

README.rst

@@ -3,7 +3,7 @@ ZODB, a Python object-oriented database
 =======================================
 
 ZODB provides an object-oriented database for Python that provides a
-high-degree of transparency. ZODB runs on Python 2.7 or Python 3.3 and
+high-degree of transparency. ZODB runs on Python 2.7 or Python 3.4 and
 above. It also runs on PyPy.
 
 - no separate language for database operations

doc/index.rst

@@ -16,7 +16,7 @@ Because ZODB is an object database:
 
 Check out the :doc:`tutorial`!
 
-ZODB runs on Python 2.7 or Python 3.3 and above. It also runs on PyPy.
+ZODB runs on Python 2.7 or Python 3.4 and above. It also runs on PyPy.
 
 Transactions
 ============