build: Update CI to use Node 10

Author: zcbenz

.appveyor.yml

@@ -10,9 +10,7 @@ platform:
   - x86
 
 install:
-  - ps: Install-Product node 8.9.4 $env:platform
-  - cmd: SET PATH=C:\Program Files (x86)\MSBuild\14.0\bin\;%PATH%
-  - cmd: SET PATH=C:\python27;%PATH%
+  - ps: Install-Product node 10 $env:platform
   - cmd: npm install
   - cmd: npm run dist
 

.travis.yml

@@ -5,11 +5,11 @@ notifications:
 
 language: node_js
 node_js:
-  - 8.9.4
+  - 10
 os:
   - osx
   - linux
-osx_image: xcode8.3
+osx_image: xcode10.1
 dist: trusty
 
 addons:

package.json

@@ -39,7 +39,7 @@
     "gui": "0.5.1",
     "opn": "5.3.0",
     "mini-signals": "1.1.1",
-    "keytar": "4.2.1",
+    "keytar": "4.3.0",
     "string-replace-async": "1.2.1",
     "@slack/client": "4.8.0"
   },