add all files

.travis.yml

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+dist: xenial
+language: python
+python:
+  - "3.7"
+install:
+  - sudo apt-get update
+  # We do this conditionally because it saves us some downloading if the
+  # version is the same.
+  - wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
+  - bash miniconda.sh -b -p $HOME/miniconda
+  - export PATH="$HOME/miniconda/bin:$PATH"
+  - hash -r
+  - conda config --set always_yes yes --set changeps1 no
+  - conda update -q conda
+  # Useful for debugging any issues with conda
+  - conda info -a
+
+  - conda env create -q -n test-environment python=$TRAVIS_PYTHON_VERSION -f environment.yml
+  - source activate test-environment
+
+script:
+  - travis_wait 30 py.test -v