Run the tests on python 3.8 too. (#51)

Author: LKaemmerling

.travis.yml

@@ -11,6 +11,7 @@ python:
 - '3.5'
 - '3.6'
 - '3.7'
+- "3.8-dev"
 
 before_script:
 - docker pull lkdevelopment/hetzner-cloud-api-mock

setup.py

@@ -42,8 +42,9 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
     ],
-    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <3.8',
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <3.9',
     description="Official Hetzner Cloud python library",
     install_requires=requirements,
     extras_require=extras_require,