Add catch-all to failed codecov run.

Author: craigthomas

.travis.yml

@@ -34,4 +34,4 @@ virtalenv:
 script: 
   - nosetests -v --with-coverage --cover-package=chip8
 after_success:
-  - bash < (curl -s https://codecov.io/bash)
+  - bash <(curl -s https://codecov.io/bash) || echo "Codecov did not collect coverage reports"