Add travis CI

.travis.yml

@@ -0,0 +1,17 @@
+language: python
+dist: xenial
+python:
+- '3.6'
+- '3.7'
+install:
+- pip install -r requirements.txt
+script:
+- python setup.py test
+deploy:
+  provider: pypi
+  skip_existing: true
+  user: jelleaalbers
+  password:
+    secure: Xc8Yg9fT1D/GgGlucut3otsboOnJzb1rgiSVnUXrMNWDZyhXghsZXz1PAGGU/reGSDwqpJWzwcEAbOwuH7U0XPie6lAj1ZdzLHnIkAqvCqSvGMaMJSN53gzXA+HoX7LAWZFOQCJqZMWs+1W2YiiZX7FVJEearCjO7tf0VIOHbS8Fi44oYbut6nYjFjQgQOoEdWLa3Zt5tpS46nCwCVbi0jjL48r4gNqG8TmFfWtozHFwiDLcm/Gemo6Q2VU5I6wi/iFZw0tOnRLysxZOV/gKQViFRXZkwVx++fGo/D6kkUY6Gaiou5EJjk9K0Aebr9RHK8oZhHT6YZOnwP6O6DuTSjdagodAGlZjITIsfWIman3Pu5TYUDhhW2c4+drcwN3YytjUo7xUl3KpGO/V9Ucz3UTsv1nJkbJypA3CnovA0oO72ydjMEBfxjWi++uoubuLStwdVcv3me1RYkGNGNRyFo4AT0hZlF6y7KwHYhzNAkhBztVXV4OEGOxWtrwPhJzyu/EvQWjMAIVjjOJXSU/Ca4vNc8SyEtvnRwAJk8u8obhz3OHpmKKl79ziOdkBWPVZftUg2+ht64LVaef1bvPH+3QbcS9fx/ewU3TPQFoX/SPqsP/U1q53DfKB0RH9+a/vHhLjrr6fj4h7lYttCIppnOiQsYRR+L2nRA/1ok6V3tI=
+  on:
+    tags: true