Fix Travis CI file

Author: Kaushik Ghose

.travis.yml

@@ -8,8 +8,8 @@ install:
   - pip install pytest-cov codecov
   - pip install .
 
- We need to cd into tests in order for coverage to work
- (it searches for .coverage in the cwd)
+# We need to cd into tests in order for coverage to work
+# (it searches for .coverage in the cwd)
 script:
   - cd tests
   - py.test --cov=benten