Drop Node.js < 6 support and update devDependencies.

.travis.yml

@@ -1,15 +1,15 @@
 sudo: false
+
 language: node_js
+
 node_js:
-  - "0.10"
-  - "0.12"
-  - "4"
-  - "5"
-  - "iojs"
-before_install:
-  - if [ "$TRAVIS_NODE_VERSION" = "0.10" ]; then npm install -g npm@2; fi
+  - "6"
+  - "8"
+  - "10"
+
 matrix:
   fast_finish: true
+
 cache:
   directories:
     - node_modules

CONTRIBUTING.md

@@ -1 +1 @@
-Please see the [Contributing to grunt](http://gruntjs.com/contributing) guide for information on contributing to this project.
+Please see the [Contributing to grunt](https://gruntjs.com/contributing) guide for information on contributing to this project.

README.md

@@ -6,7 +6,7 @@
 
 ## Getting Started
 
-If you haven't used [Grunt](http://gruntjs.com/) before, be sure to check out the [Getting Started](http://gruntjs.com/getting-started) guide, as it explains how to create a [Gruntfile](http://gruntjs.com/sample-gruntfile) as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
+If you haven't used [Grunt](https://gruntjs.com/) before, be sure to check out the [Getting Started](https://gruntjs.com/getting-started) guide, as it explains how to create a [Gruntfile](https://gruntjs.com/sample-gruntfile) as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
 
 ```shell
 npm install grunt-contrib-connect --save-dev
@@ -405,4 +405,4 @@ grunt.registerTask('jasmine-server', 'start web server for jasmine tests in brow
 
 Task submitted by ["Cowboy" Ben Alman](http://benalman.com)
 
-*This file was generated on Wed Apr 27 2016 10:11:42.*
+*This file was generated on Thu Sep 06 2018 16:46:53.*

appveyor.yml

@@ -1,30 +1,19 @@
-# http://www.appveyor.com/docs/appveyor-yml
-
 clone_depth: 10
 
 version: "{build}"
 
 # What combinations to test
 environment:
   matrix:
-    - nodejs_version: "0.10"
-      platform: x86
-    - nodejs_version: "0.12"
+    - nodejs_version: "6"
       platform: x86
-    - nodejs_version: "4"
-      platform: x64
-    - nodejs_version: "4"
+    - nodejs_version: "8"
       platform: x86
-    - nodejs_version: "5"
+    - nodejs_version: "10"
       platform: x86
 
 install:
   - ps: Install-Product node $env:nodejs_version $env:platform
-  - ps: >-
-      if ($env:nodejs_version -eq "0.10") {
-        npm -g install npm@2
-        $env:PATH="$env:APPDATA\npm;$env:PATH"
-      }
   - npm install
 
 test_script: