Grunt setting files

Gruntfile.js

module.exports = function(grunt){
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),

         sass: {
            dist: {
                options: {
                    style: 'expanded',
                    lineNumbers: true,
                    // compass: true
                },
                files: [{
                    expand: true,
                    cwd: 'sass',
                    src: ['*.scss'],
                    dest: './css',
                    ext: '.css'
                }]
            }
         },
         csso: {
            dist: {
                files: {
                    './css/all.min.css': ['./css/*.css','!./css/all.min.css']
                }
            }
         },
        uglify: {
            target: {
                files: { './js/all.min.js': ['./js/*.js','!./js/all.min.js'] }
            }
        },
         autoprefixer: {
            options: {
                browsers: ['ios >= 5','android >= 2.3']
            },
            dist: {
                src: './css/all.css'
            }
         },
         connect: {
            dist: {
                options: {
                    port: 8080,
                    base: '.',
                    open: 'http://localhost:8080/index.html'
                }
            }
         },
         watch: {
            sass: {
                files: ['./sass/*.scss'],
                tasks: ['sass'],
                options: {
                livereload: true
                }
            }
         }
    });

    grunt.loadNpmTasks('grunt-contrib-watch');
    grunt.loadNpmTasks('grunt-contrib-sass');
    grunt.loadNpmTasks('grunt-contrib-connect');
    grunt.loadNpmTasks('grunt-contrib-uglify');
    grunt.loadNpmTasks('grunt-csso');
    grunt.loadNpmTasks('grunt-autoprefixer');

    grunt.registerTask('default',['develop']); //Default task.
    grunt.registerTask('develop',['connect','watch']);
    grunt.registerTask('publish',['autoprefixer','csso','uglify']);
};

package.json

{
  "name": "grunt template",
  "version": "0.0.0",
  "description": "grunt template",
  "main": "Gruntfile.js",
  "scripts": {
    "test": "\"echo \\\"Error: no test specified\\\" && exit 1\""
  },
  "author": "nakajmg",
  "license": "BSD",
  "devDependencies": {
    "grunt": "~0.4.1",
    "grunt-contrib-sass": "~0.5.0",
    "grunt-contrib-watch": "~0.5.3",
    "grunt-contrib-connect": "~0.5.0",
    "grunt-contrib-uglify": "~0.2.4",
    "grunt-csso": "~0.5.0",
    "grunt-autoprefixer": "~0.4.1"
  }
}