support python 3.4 testing

Got error with last commit. travis didn't even make it out of the
starting gate. Maybe it needs an if form??

Author: rouilj

.travis.yml

@@ -84,8 +84,8 @@ before_install:
   - cd $TRAVIS_BUILD_DIR
 
 install:
-  - [[ $TRAVIS_PYTHON_VERSION == "3.4"* ]] && pip install mysqlclient==1.3.14
-  - [[ $TRAVIS_PYTHON_VERSION != "3.4"* ]] && pip install mysqlclient
+  - if [[ $TRAVIS_PYTHON_VERSION == "3.4"* ]]; then  pip install mysqlclient==1.3.14; fi
+  - if [[ $TRAVIS_PYTHON_VERSION != "3.4"* ]]; then pip install mysqlclient; fi
   - pip install psycopg2
   - pip install gpg pytz whoosh pyjwt
   - pip install pytest-cov codecov