test, #519: Travis-test flake8/site on py3.4 only

Author: ankostis

Diff for: .travis.yml

@@ -32,8 +32,8 @@ script:
   - ulimit -n 96
   - ulimit -n
   - nosetests -v --with-coverage
-  - if [ "$TRAVIS_PYTHON_VERSION" != '2.6' ]; then flake8; fi
-  - if [ "$TRAVIS_PYTHON_VERSION" != '2.6' ]; then cd doc && make html; fi
+  - if [ "$TRAVIS_PYTHON_VERSION" == '3.4' ]; then flake8; fi
+  - if [ "$TRAVIS_PYTHON_VERSION" == '3.4' ]; then cd doc && make html; fi
   -
 after_success:
   - coveralls