fix build setup

Author: chfw

.travis.yml

@@ -18,8 +18,8 @@ install:
   - if [[ $TRAVIS_PYTHON_VERSION == "2.7" ]]; then pip install pyexcel-ods; fi
   - if [[ $TRAVIS_PYTHON_VERSION == "3.3" ]]; then pip install git+https://github.com/chfw/ezodf.git; fi
   - if [[ $TRAVIS_PYTHON_VERSION == "3.4" ]]; then pip install git+https://github.com/chfw/ezodf.git; fi
-  - if [[ $TRAVIS_PYTHON_VERSION == "3.3" ]]; then pip install pyexcel-ods3; fi
-  - if [[ $TRAVIS_PYTHON_VERSION == "3.4" ]]; then pip install pyexcel-ods3; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == "3.3" ]]; then pip install git+https://github.com/chfw/pyexcel-ods3.git; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == "3.4" ]]; then pip install git+https://github.com/chfw/pyexcel-ods3.git; fi
 script:
   make test
 after_success: