add scipy to the test environment in travis config (#269)

Author: alykhantejani

.travis.yml

@@ -14,7 +14,7 @@ install:
   # Useful for debugging any issues with conda
   - conda info -a
 
-  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION pytorch -c soumith
+  - conda create -q -n test-environment python=$TRAVIS_PYTHON_VERSION pytorch scipy -c soumith
   - source activate test-environment
   - python setup.py install
   - pip install --upgrade pytest