Update .travis.yml

.travis.yml

@@ -7,6 +7,7 @@ python:
 # command to install dependencies
 install:
 - pip install --upgrade pip setuptools
+- pip install --upgrade pbr
 - pip install -r requirements.txt --prefer-binary
 - pip install joblib
   #- python setup.py install
@@ -15,6 +16,8 @@ install:
 script:
   - pytest
 
+before_deploy:
+ - pbr --version
 deploy:
   provider: pypi
   user: Jhsmit