Grunt buildfile with angular: livereload, cssmin, jsmin all in one

bower.json

{
  "name": "sampleApp",
  "version": "0.1.0",
  "dependencies": {
    "angular": "~1.2",
    "angular-animate": "~1.2",
    "angular-route": "~1.2",
    "angular-bootstrap": "~0.6",
    "bootstrap": "~3.0.0"
  },
  "devDependencies": {
      "angular-mocks": "~1.2",
      "angular-scenario": "~1.2"
  }
}

Gruntfile.js

module.exports = function(grunt) {

    // Project configuration.
    grunt.initConfig({

        pkg: grunt.file.readJSON('package.json'),
        concat: {
            js: {
                src: [
                    'app/bower_components/angular/angular.js',
                    'app/bower_components/angular-route/angular-route.js',
                    'app/bower_components/angular-bootstrap/ui-bootstrap-tpls.js',
                    'app/scripts/controllers.js',
                    'app/scripts/app.js'
                ] ,
                dest: 'app/dist/js/app-all.js'
            },
            css: {
                src: [
                    'app/bower_components/bootstrap/dist/css/bootstrap.css',
                    'app/styles/main.css'
                ],
                dest: 'app/dist/css/app-all.css'
            }
        },
        uglify: {
            js: {
                src: 'app/dist/js/app-all.js',
                dest: 'app/dist/js/app-all.min.js'
            }
        },
        cssmin: {
            css:{
                src: 'app/dist/css/app-all.css',
                dest: 'app/dist/css/app-all.min.css'
            }
        },
        connect: {
            options: {
                port: 9000,
                livereload: 35729,
                // change this to '0.0.0.0' to access the server from outside
                hostname: 'localhost'
            },
            livereload: {
                options: {
                    open: true,
                    base: [
                        '.tmp',
                        'app'
                    ]
                }
            },
            test: {
                options: {
                    base: [
                        '.tmp',
                        'test',
                        'app'
                    ]
                }
            },
            dist: {
                options: {
                    open: true,
                    base: '<%= yeoman.dist %>'
                }
            }
        },
        // grunt-watch will monitor the projects files
        watch: {
            css:{
                files: 'app/styles/*.css',
                tasks: ['concat:css', 'cssmin'],
                options: {
                    livereload: true
                }
            },
            js:{
                files: ['Gruntfile.js', 'app/scripts/*.js'],
                tasks: ['concat:js', 'uglify'],
                options: {
                    livereload: true
                }
            },
            all: {
                files: [
                    'app/*.html'
                ],
                options: {
                    livereload: true
                }
            }
        }
    });


    grunt.loadNpmTasks('grunt-contrib-concat');
    grunt.loadNpmTasks('grunt-contrib-uglify');
    grunt.loadNpmTasks('grunt-css');
    grunt.loadNpmTasks('grunt-contrib-watch');
    grunt.loadNpmTasks("grunt-contrib-connect");

    grunt.registerTask('build', [
        'concat',
        'uglify',
        'cssmin'
    ]);

    // Default task(s).
    grunt.registerTask('default', ['build']);


    // Creates the `server` task
    grunt.registerTask('server', [
        'build',
        'connect:livereload',
        'watch'
    ]);
};

package.json

{
  "name": "sampleApp",
  "version": "0.1.0",
  "dependencies": {},
  "devDependencies": {
    "grunt": "~0.4.1",
    "grunt-contrib-copy": "~0.4.1",
    "grunt-contrib-concat": "~0.3.0",
    "grunt-contrib-uglify": "~0.2.0",
    "grunt-contrib-compass": "~0.5.0",
    "grunt-contrib-jshint": "~0.6.3",
    "grunt-contrib-cssmin": "~0.6.0",
    "grunt-contrib-connect": "~0.5.0",
    "grunt-contrib-clean": "~0.5.0",
    "grunt-contrib-htmlmin": "~0.1.3",
    "grunt-contrib-imagemin": "~0.2.0",
    "grunt-contrib-watch": "~0.5.2",
    "grunt-rev": "~0.1.0",
    "grunt-autoprefixer": "~0.2.0",
    "grunt-usemin": "~0.1.10",
    "grunt-mocha": "~0.4.0",
    "grunt-modernizr": "~0.3.0",
    "grunt-svgmin": "~0.2.0",
    "grunt-concurrent": "~0.3.0",
    "load-grunt-tasks": "~0.1.0",
    "time-grunt": "~0.1.1",
    "grunt-css": "~0.5.4",
    "phantomjs" : "*",
    "karma" : "*",
    "karma-junit-reporter" : "*",
    "karma-jasmine" : "*",
    "karma-ng-scenario" : "*"
  },
  "engines": {
    "node": ">=0.8.0"
  }
}