Disable bitrotten tests and upgrade tensorflow (#78)

* Disable bitrotten python 3.5 tests

* Switch to python 3.5

* Fix version

* Switch tf version

.travis.yml

@@ -3,12 +3,8 @@ sudo: required
 dist: trusty
 language: python
 python:
-  - 2.7
   - 3.5
 
-env:
-  - TENSORFLOW_V=1.8.0
-
 install:
   # code below is taken from http://conda.pydata.org/docs/travis.html
   # We do this conditionally because it saves us some downloading if the
@@ -31,12 +27,7 @@ install:
   - source activate test-environment
 
   # install TensorFlow
-  - >
-    if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" && "$TENSORFLOW_V" == "1.8.0" ]]; then
-      pip install https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-1.8.0-cp27-none-linux_x86_64.whl;
-    elif [[ "$TRAVIS_PYTHON_VERSION" == "3.5" && "$TENSORFLOW_V" == "1.8.0" ]]; then
-      pip install https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-1.8.0-cp35-cp35m-linux_x86_64.whl;
-    fi
+  - pip install tensorflow==1.14.0
 
 # command to run tests
 script: