Configured codecov.io and integrated with Travis (#38)

Author: kodek16

.travis.yml

@@ -8,5 +8,7 @@ addons:
     packages:
       libdb-dev
       lighttpd
-install: pip install tox-travis
+install: pip install codecov tox-travis
 script: tox
+after_success:
+  - codecov

tox.ini

@@ -2,6 +2,6 @@
 envlist=py27,py36
 
 [testenv]
-deps=
-  pytest
-commands = pytest {posargs}
+deps=pytest
+     pytest-cov
+commands = pytest --cov=./ {posargs}