fix travis

.travis.yml

@@ -7,9 +7,9 @@ before_install:
   # Commands below copied from: http://conda.pydata.org/docs/travis.html
   # We do this conditionally because it saves us some downloading if the
   # version is the same.
+  # See https://www.tensorflow.org/install/install_linux#use_pip_in_anaconda
   - if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" ]]; then
       wget https://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh;
-      # See https://www.tensorflow.org/install/install_linux#use_pip_in_anaconda
       export TF_PACKAGE=https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-1.10.1-cp27-none-linux_x86_64.whl;
     else
       wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;