fixes travis config

Author: saxix

.travis.yml

@@ -45,7 +45,7 @@ env:
 
 
 install:
-  - pip install tox coverage python-coveralls>=2.5 coveralls>=0.5 codecov
+  - pip install tox "coverage<=4.0" python-coveralls>=2.5 coveralls>=0.5 codecov
 
 script:
   - tox -e $TOXENV -- py.test tests -v --capture=no --cov=concurrency \

tests/.coveragerc

@@ -1,5 +1,5 @@
 [run]
-branch = 1
+branch = True
 source = concurrency
 
 omit = src/concurrency/__init__.py
@@ -25,4 +25,4 @@ exclude_lines =
 ignore_errors = True
 
 [html]
-directory = ~build/coverage
+directory = build/coverage