Run on travis ci

Author: bboe

.travis.yml

@@ -0,0 +1,19 @@
+cache: pip
+dist: xenial
+install: pip install .[test]
+jobs:
+  include:
+    - install: pip install .[lint]
+      python: 3.7
+      script:
+        - black --check --verbose *.py deslackify
+        - flake8 --exclude=.eggs,build,docs
+      stage: lint
+language: python
+python:
+  - 3.7
+  - 2.7
+script: pytest
+stages:
+  - lint
+  - test