gruntfile config replace version number

gistfile1.js

,
replace: {
  app: {
    src: ['dist/index.html'],
    overwrite: true,
    replacements: [{
      from: '##build##',
      to: 'Version: <%= pkg.version %> Build: <%= grunt.template.today(\'dd/mm/yyyy hh:MM:ss\') %>'
    }]
  }
}