Merge pull request #8 from Emantor/fix/coverage_setup

coveralls: exclude lines via .coveragerc and use it for travis

.coveragerc

@@ -0,0 +1,10 @@
+[report]
+exclude_lines =
+    pragma: no cover
+    def __repr__
+    if self.debug:
+    if settings.DEBUG
+    raise AssertionError
+    raise NotImplementedError
+    if 0:
+    if __name__ == .__main__.:

.travis.yml

@@ -7,6 +7,6 @@ install:
   - pip install -r dev-requirements.txt
   - pip install -e .
 script:
-  - pytest --cov=labgrid
+  - pytest --cov-config .coveragerc --cov=labgrid
 after_success:
   - coveralls