Record release date and use it to build 4chan-X.zip deterministically.

Gruntfile.coffee

@@ -209,6 +209,7 @@ module.exports = (grunt) ->
         flatten: true
         src: 'testbuilds/crx<%= pkg.meta.suffix.noupdate %>/*'
         dest: '/'
+        date: '<%= pkg.meta.date %>'
 
     clean:
       builds: 'builds'
@@ -376,6 +377,7 @@ module.exports = (grunt) ->
     pkg = grunt.file.readJSON 'package.json'
     oldversion = pkg.meta.version
     pkg.meta.version = version
+    pkg.meta.date = new Date()
     grunt.config 'pkg', pkg
     grunt.file.write 'package.json', JSON.stringify(pkg, null, 2) + '\n'
     grunt.log.ok "Version updated from v#{oldversion} to v#{version}."

package.json

@@ -4,6 +4,7 @@
   "meta": {
     "name": "4chan X",
     "version": "1.10.2.8",
+    "date": "2015-02-28T19:31:56.000Z",
     "repo": "https://github.com/ccd0/4chan-x/",
     "page": "https://github.com/ccd0/4chan-x",
     "downloads": "https://ccd0.github.io/4chan-x/builds/",