Simple gulpfile: do not use gulp.run > deprecated soon

gulpfile.js

// Load plugins
var gulp = require('gulp'),
    sass = require('gulp-ruby-sass'),
    autoprefixer = require('gulp-autoprefixer'),
    jshint = require('gulp-jshint'),
    uglify = require('gulp-uglify'),
    rename = require('gulp-rename'),
    concat = require('gulp-concat'),
    notify = require('gulp-notify'),
    minifycss = require('gulp-minify-css');

// CSS task
gulp.task('css', function() {
    return gulp.src('./www/scss/screen.scss')
        .pipe(sass({ style: 'expanded', }))
        .pipe(autoprefixer('last 3 version', 'safari 5', 'ie 8', 'ie 9'))
        .pipe(gulp.dest('./www/css/'))
        .pipe(rename({ suffix: '.min' }))
        .pipe(minifycss())
        .pipe(gulp.dest('./www/css/'))
        .pipe(notify({ message: 'Styles task complete' }));
});

// Lint JS task
gulp.task('jslint', function() {
    return gulp.src('./www/js/modules/*.js')
        .pipe(jshint())
        .pipe(jshint.reporter('default'))
        .pipe(notify({ message: 'Lint task complete' }));
});

//Concatenate and Minify JS task
gulp.task('scripts', function() {
    return gulp.src('./www/js/modules/*.js')
        .pipe(concat('production.js'))
        .pipe(gulp.dest('./www/js/build'))
        .pipe(rename('production.min.js'))
        .pipe(uglify())
        .pipe(gulp.dest('./www/js/build'))
        .pipe(notify({ message: 'Scripts task complete' }));
});

// Watch task
gulp.task('watch', function () {
    gulp.watch('./www/scss/**', ['css']);
    gulp.watch('./www/js/**', ['jslint', 'scripts']);
});

//tasks
gulp.task('default', ['css', 'jslint', 'scripts']);