code: function tag_version(){
  	return new Promise((resolve, reject)=>{
  		const pkg = reload('../../package.json');
      const tag = `v${pkg.version}`;
      gutil.log('Tagging as: '+gutil.colors.cyan(tag));
      git.tag(tag, `Tagging as ${tag}`, (err)=>{
  			checkError(err);
  			resolve(tag);
      })
  	})
  }
docs: Tag current version number in git