initial travis file upload with only check relase step stages

Author: Aldemuro

.travis.yml

@@ -0,0 +1,13 @@
+language: python
+python:
+  - "3.4"
+  - "3.5"
+  - "3.6"
+
+jobs:
+  include:
+    - stage: check_release_steps
+      script: if git tag | grep -qE "^v$(python setup.py --version)$"; then echo "Release already exists"; exit 1; fi
+      script: if ! grep -q "v$(python setup.py --version)" CHANGELOG.md; then echo "Version missing in CHANGELOG.md"; exit 1; fi
+
+