Merge pull request sectool#1 from sectool/travis-yml-file

adding travis version control to buf.py

Author: İsmail Taşdelen

.travis.yml

@@ -0,0 +1,11 @@
+language: python
+python:
+  - "3.4"
+  - "3.5"
+  - "3.6"
+# command to install dependencies
+install:
+  - pip install .
+# command to run tests
+script:
+  - pytest tests/*.py