Attempt to fix Codecov

.travis.yml

@@ -10,6 +10,7 @@ virtualenv:
 install:
   - pip install -r requirements.txt
   - pip install --editable .
+  - pip install codecov pytest-cov
 script:
   - py.test && py.test --cov-report xml --cov=certidude tests/
 cache:
@@ -19,4 +20,3 @@ addons:
   apt:
     packages:
     - python-ldap
-#  - pip install codecov pytest-cov