Try to run pytest on Windows

Author: adamtheturtle

.appveyor.yml

@@ -0,0 +1,5 @@
+install:
+- pip install --upgrade pip setuptools
+- pip install --upgrade --editable .[dev]
+test_script:
+- pytest -vvv --exitfirst tests/ --cov-fail-under 100 --cov src --cov tests

.travis.yml

@@ -1,7 +1,5 @@
 language: python
 python: 3.7
-dist: xenial
-sudo: true
 addons:
   apt:
     packages: