let pytest do coverage

.travis.yml

@@ -18,7 +18,7 @@ install:
 - pip install coveralls
 - pip install -r requirements.txt
 script:
-- coverage run --source=freqtrade setup.py test
+- python setup.py test
 after_success:
 - coveralls
 notifications:

setup.cfg

@@ -2,4 +2,4 @@
 test=pytest
 
 [tool:pytest]
-addopts = --pyargs freqtrade
+addopts = --cov=freqtrade --cov-config=.coveragerc freqtrade/tests/