Gulp config with jshint, css/js minify, concat, livereload/browsersync, nodemon

Gulpfile.js

"use strict";

var gulp        = require('gulp'),
    concat      = require('gulp-concat'),
    nodemon     = require('gulp-nodemon'),
    mincss      = require('gulp-minify-css'),
    uglify      = require('gulp-uglify'),
    jshint      = require('gulp-jshint'),
    head        = require('gulp-header'),
    bs          = require('browser-sync').create(),
    cfg         = require('./config.js'),
    date        = new Date().toLocaleString(),
    src         = {};

/* ---------------------------------- */
src.css = {
    'files': [
        'public/css/bootstrap.css',
        'public/css/app.css'
    ],
    'dest': 'public/css/',
    'name': 'all.min.css'
};

src.js = {
    'files': [
        'public/js/jquery-2.1.3.js',
        'public/js/bootstrap.js',
        'public/js/masonry.pkgd.js',
        'public/js/app.js'
    ],
    'dest': 'public/js/',
    'name': 'all.min.js'
};

src.app = {
    'main': 'index.js',
    'files': [
        'lib.js',
        'config.js',
        'gulpfile.js',
        'libs/*.js'
    ],
    'ignore': [
        '.idea/*',
        'node_modules/*',
        'public/*'
    ]
};

/* ---------------------------------- */
src.css.files.push('!'+src.css.dest+src.css.name);
src.js.files.push('!'+src.js.dest+src.js.name);
src.app.files.push(src.app.main);

gulp.task('css', function () {
    return gulp.src(src.css.files)
        .pipe(mincss())
        .pipe(concat(src.css.name))
        .pipe(head('/* created at '+date+' */'+'\r\n'))
        .pipe(gulp.dest(src.css.dest));
});

gulp.task('js', function () {
    return gulp.src(src.js.files)
        .pipe(concat(src.js.name))
        .pipe(head('/* created at '+date+' */'+'\r\n'))
        .pipe(gulp.dest(src.js.dest));
});

gulp.task('js-uglify', function () {
    return gulp.src(src.js.files)
        .pipe(uglify())
        .pipe(concat(src.js.name))
        .pipe(head('/* created at '+date+' */'+'\r\n'))
        .pipe(gulp.dest(src.js.dest));
});

gulp.task('lint', function () {
    return gulp.src(src.app.files)
        .pipe(jshint())
        .pipe(jshint.reporter('default', { verbose: true }));
});

gulp.task('reload-css', ['css'], function () {
    bs.reload();
});

gulp.task('reload-js', ['js'], function () {
    bs.reload();
});

gulp.task('watch', ['css', 'js'], function () {
    gulp.watch(src.css.files, ['reload-css']);
    gulp.watch(src.js.files, ['reload-js']);
});

gulp.task('default', ['watch'], function() {
    nodemon({
        'script': 'index.js',
        'ext': 'jade js',
        'ignore': src.app.ignore
    }).on('start', function () {
        setTimeout(function () {
            if (typeof src.app.bs === 'undefined'){
                src.app.bs = bs.init({proxy: "localhost:"+cfg.port});
            } else {
                bs.reload();
            }
        }, 1000);
    });
});