try fetching packages from cf

Author: ocefpaf

.travis.yml

@@ -76,6 +76,7 @@ before_install:
   - export PATH="$HOME/miniconda/bin:$PATH"
   - conda config --set always_yes yes --set changeps1 no --set show_channel_urls true
   - conda update conda
+  - conda config --add channels conda-forge --force
   - conda config --add channels odm2 --force
   - conda create --name TEST python=$TRAVIS_PYTHON_VERSION --file requirements.txt --file requirements-dev.txt
   - source activate TEST