Remove timestamp on generated Glyhpicons

Gruntfile.js

@@ -316,9 +316,8 @@ module.exports = function (grunt) {
 
     // Use any line that starts with ".glyphicon-" and capture the class name
     var iconClassName = /^\.(glyphicon-[^\s]+)/
-    var glyphiconsData = '# Generated on ' + (new Date()) + '\n' +
-                         '# **Don\'t edit this directly!**\n' +
-                         '# Look at the \'build-glyphicons-data\' task in Gruntfile.js\n\n';
+    var glyphiconsData = '# This file is generated via Grunt task. **Do not edit directly.** \n' +
+                         '# See the \'build-glyphicons-data\' task in Gruntfile.js.\n\n';
     for (var i = 0, len = glpyhiconsLines.length; i < len; i++) {
       var match = glpyhiconsLines[i].match(iconClassName)
 

_data/glyphicons.yml

-# Generated on Sun Dec 22 2013 21:00:46 GMT-0800 (PST)
-# **Don't edit this directly!**
-# Look at the 'build-glyphicons-data' task in Gruntfile.js
+# This file is generated via Grunt task. **Do not edit directly.** 
+# See the 'build-glyphicons-data' task in Gruntfile.js.
 
 - glyphicon-asterisk
 - glyphicon-plus