Set the minimal supported node version to 10

Author: fatfisz

.travis.yml

@@ -1,12 +1,14 @@
-sudo: false
 language: node_js
 cache:
   directories:
     - node_modules
 notifications:
   email: true
 node_js:
-  - "node"
+  - 14
+  - 13
+  - 12
+  - 10
 script:
   - npm test
 after_script:

appveyor.yml

@@ -1,7 +1,9 @@
 environment:
   matrix:
-    - nodejs_version: 8
-    - nodejs_version: 6
+    - nodejs_version: 14
+    - nodejs_version: 13
+    - nodejs_version: 12
+    - nodejs_version: 10
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
@@ -18,4 +20,4 @@ test_script:
 after_test:
   - npm run codecov
 cache:
-  - '%APPDATA%\npm-cache'
+  - '%APPDATA%\npm-cache'

package.json

@@ -42,7 +42,7 @@
     "lib": "lib"
   },
   "engines": {
-    "node": ">=4.0.0"
+    "node": ">=10.0.0"
   },
   "homepage": "https://github.com/declandewet/common-tags",
   "keywords": [