Added travis yaml file.

Author: davidlday

.travis.yml

@@ -0,0 +1,34 @@
+# Config file for automatic testing at travis-ci.org
+
+language: python
+
+python:
+  - "pypy3"
+  - "pypy"
+  - "3.6"
+  - "3.5"
+  - "3.4"
+  - "2.7"
+
+# Use container-based infrastructure
+sudo: false
+
+# command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
+install:
+  - pip install -r requirements.txt
+  - pip install coverage
+
+# command to run tests, e.g. python setup.py test
+script:
+  - coverage run --source pointofview setup.py test --verbose
+  - if [[ $TRAVIS_PYTHON_VERSION == 3* ]]; then python -m doctest pointofview/__init__.py; fi
+
+after_success:
+- pip install coveralls
+- coveralls # send coverage to coveralls.io
+
+after_script:
+- coverage report                     # show coverage on cmd line
+- pip install pycodestyle pyflakes
+- pyflakes . | tee >(wc -l)           # static analysis
+- pycodestyle --statistics --count .  # static analysis