[CI] Add python 3.7 and 3.8 builds

Author: mpsonntag

.travis.yml

@@ -12,11 +12,21 @@ matrix:
       python: "3.5"
     - os: linux
       python: "3.6"
+    - os: linux
+      python: "3.7"
+      dist: xenial
+    - os: linux
+      python: "3.8"
+      dist: xenial
 
     - os: osx
       language: generic
       env:
         - OSXENV=3.6.0
+    - os: osx
+      language: generic
+      env:
+        - OSXENV=3.7.0
     - os: osx
       language: generic
       env:

appveyor.yml

@@ -6,12 +6,16 @@ environment:
       PYVER: "3.5"
     - PYTHON: "C:\\Python36"
       PYVER: "3.6"
+    - PYTHON: "C:\\Python37"
+      PYVER: "3.7"
     - PYTHON: "C:\\Python27-x64"
       PYVER: "2.7"
     - PYTHON: "C:\\Python35-x64"
       PYVER: "3.5"
     - PYTHON: "C:\\Python36-x64"
       PYVER: "3.6"
+    - PYTHON: "C:\\Python37-x64"
+      PYVER: "3.7"
 
 build: false