feat: test on node 12 (#1846)

Author: reconbot

.travis.yml

@@ -26,6 +26,7 @@ env:
   - TRAVIS_NODE_VERSION="9"
   - TRAVIS_NODE_VERSION="9" ARCH="x86"
   - TRAVIS_NODE_VERSION="10"
+  - TRAVIS_NODE_VERSION="12"
 matrix:
   exclude:
   - os: osx

appveyor.yml

@@ -7,10 +7,11 @@ environment:
 
   matrix:
   - nodejs_version: "6"
-  - binary_builder: "true"
-    nodejs_version: "8"
+  - nodejs_version: "8"
+    binary_builder: "true"
   - nodejs_version: "9"
   - nodejs_version: "10"
+  - nodejs_version: "12"
 
 platform:
 - x86