Update html-minifier to v3.5.0.

CHANGELOG

@@ -1,3 +1,7 @@
+v2.4.0:
+  date: 2017-05-16
+  changes:
+    - Updated html-minifier to v3.5.0.
 v2.3.0:
   date: 2017-03-08
   changes:

README.md

@@ -1,4 +1,4 @@
-# grunt-contrib-htmlmin v2.3.0 [![Build Status: Linux](https://travis-ci.org/gruntjs/grunt-contrib-htmlmin.svg?branch=master)](https://travis-ci.org/gruntjs/grunt-contrib-htmlmin) [![Build Status: Windows](https://ci.appveyor.com/api/projects/status/sn73i2qggqeolnc2/branch/master?svg=true)](https://ci.appveyor.com/project/gruntjs/grunt-contrib-htmlmin/branch/master)
+# grunt-contrib-htmlmin v2.4.0 [![Build Status: Linux](https://travis-ci.org/gruntjs/grunt-contrib-htmlmin.svg?branch=master)](https://travis-ci.org/gruntjs/grunt-contrib-htmlmin) [![Build Status: Windows](https://ci.appveyor.com/api/projects/status/sn73i2qggqeolnc2/branch/master?svg=true)](https://ci.appveyor.com/project/gruntjs/grunt-contrib-htmlmin/branch/master)
 
 > Minify HTML
 
@@ -91,6 +91,7 @@ grunt.registerTask('default', ['htmlmin']);
 
 ## Release History
 
+ * 2017-05-16   v2.4.0   Updated html-minifier to v3.5.0.
  * 2017-03-08   v2.3.0   Updated html-minifier to v3.4.0.
  * 2017-01-30   v2.2.0   Updated html-minifier to v3.3.0.
  * 2017-01-14   v2.1.0   Updated html-minifier to v3.2.3 and pretty-bytes to 4.0.2.
@@ -117,4 +118,4 @@ grunt.registerTask('default', ['htmlmin']);
 
 Task submitted by [Sindre Sorhus](http://github.com/sindresorhus)
 
-*This file was generated on Wed Mar 08 2017 11:17:35.*
+*This file was generated on Tue May 16 2017 21:24:09.*

package.json

@@ -1,7 +1,7 @@
 {
   "name": "grunt-contrib-htmlmin",
   "description": "Minify HTML",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "author": {
     "name": "Grunt Team",
     "url": "http://gruntjs.com/"
@@ -17,7 +17,7 @@
   },
   "dependencies": {
     "chalk": "^1.0.0",
-    "html-minifier": "~3.4.0",
+    "html-minifier": "~3.5.0",
     "pretty-bytes": "^4.0.2"
   },
   "devDependencies": {