test using coveralls-python

.travis.yml

@@ -9,9 +9,9 @@ before_script:
 - pip install -e .
 - pip install pycodestyle
 - pip install nose2
-- pip install coverage>=4.4.2
+- pip install coverage
 - pip install commonconf
-- pip install python-coveralls
+- pip install coveralls
 script:
 - pycodestyle uw_r25/
 - coverage run --source=uw_r25 uw_r25/test.py -v