Trying to get coverage support

Author: regebro

.coveragerc

@@ -0,0 +1,5 @@
+[run]
+include = */core/*
+include = */dot/*
+omit = */tests/*
+

.travis.yml

@@ -4,6 +4,7 @@ python:
     - 3.5
     - 3.6
 install:
+    - travis_retry pip install coveralls
     - travis_retry pip install -e ./core
     - travis_retry pip install -e ./dot
 script: