Test: Add nodejs v11-v14 into ci test versions

Author: sttk

.travis.yml

@@ -3,6 +3,10 @@ sudo: false
 language: node_js
 
 node_js:
+  - '14'
+  - '13'
+  - '12'
+  - '11'
   - '10'
   - '9'
   - '8'

appveyor.yml

@@ -4,6 +4,10 @@
 environment:
   matrix:
     # node.js
+    - nodejs_version: "14"
+    - nodejs_version: "13"
+    - nodejs_version: "12"
+    - nodejs_version: "11"
     - nodejs_version: "10"
     - nodejs_version: "9"
     - nodejs_version: "8"