Gulpfile Missing Spin.js

bower.json

{
  "name": "xxx",
  "dependencies": {
    "bootstrap": "~3.1.1",
    "swiper": "~2.6.0",
    "hammerjs": "~1.1.2",
    "jquery-hammerjs": "~1.1.2",
    "lodash": "~2.4.1",
    "handlebars": "~1.3.0",
    "spin.js": "~2.0.1"
  }
}

gulpfile.js

var gulp = require('gulp'),
    coffee = require('gulp-coffee'),
    concat = require('gulp-concat'),
    uglify = require('gulp-uglify'),
    less = require('gulp-less'),
    imagemin = require('gulp-imagemin'),
    prefix = require('gulp-autoprefixer'),
    gutil = require('gulp-util'),
    resolveDependencies = require('gulp-resolve-dependencies');

var paths = {
  scripts: ['assets/coffee/**/*.coffee', 'assets/js/**/*.js'],
  styles:  ['assets/less/**/*.less', 'assets/css/**/*.css'],
  images:  ['assets/img/**/*'],
  fonts:   ['assets/fonts/**/**']
};

// Compile all Less Stylesheets
gulp.task('styles', function () {
  return gulp.src(['assets/less/theme.less', 'assets/css/**/*.css'])
    .pipe(less().on('error', gutil.log))
    .pipe(prefix(['last 2 version', '> 1%'], {cascade: true}))
    .pipe(concat('theme.css'))
    .pipe(gulp.dest('dist/assets/styles'))
    .on('error', gutil.log);
});

// Optimize all images
gulp.task('images', function() {
 return gulp.src(paths.images)
    //.pipe(imagemin({optimizationLevel: 5}).on('error', gutil.log))
    .pipe(gulp.dest('dist/assets/images'))
    .on('error', gutil.log);
});

gulp.task('scripts', function() {
  // Compile Coffescript, minify and uglify JS
  return gulp.src(paths.scripts)
    .pipe(coffee().on('error', gutil.log))
    .pipe(resolveDependencies({
      pattern: /\*= require [\s-]*(.*?\.js)/g,
      log: true
    }))
    .pipe(concat('all.min.js'))
    //.pipe(uglify())
    .pipe(gulp.dest('dist/assets/scripts'))
    .on('error', gutil.log);
});

gulp.task('fonts', function(){
  return gulp.src(paths.fonts)
    .pipe(gulp.dest('dist/assets/fonts'))
    .on('error', gutil.log);
})

// Watch Files For Changes
gulp.task('watch', function() {
  gulp.watch(paths.scripts, ['scripts']);
  gulp.watch(paths.styles, ['styles']);
  gulp.watch(paths.images, ['images']);
  gulp.watch(paths.fonts, ['fonts'])
});

// Default Task
gulp.task('default', ['scripts', 'styles', 'images', 'fonts']);

main.coffee

###
 *= require ../../bower_components/jquery/dist/jquery.js
 *= require ../../bower_components/bootstrap/dist/js/bootstrap.js
 *= require ../../bower_components/hammerjs/hammer.js
 *= require ../../bower_components/jquery-hammerjs/jquery.hammer.js
 *= require ../../bower_components/lodash/dist/lodash.js
 *= require ../../bower_components/handlebars/handlebars.js
 *= require ../../bower_components/spin/spin.js
###

package.json

{
  "name": "xxx",
  "version": "0.0.1",
  "description": "",
  "main": "index.js",
  "dependencies": {
  },
  "devDependencies": {
    "gulp": "^3.6.1",
    "gulp-less": "^1.2.3",
    "gulp-optipng": "0.0.2",
    "gulp-util": "^2.2.14",
    "gulp-coffee": "^1.4.2",
    "gulp-concat": "^2.2.0",
    "gulp-uglify": "^0.2.1",
    "gulp-jshint": "^1.5.3",
    "gulp-rename": "^1.2.0",
    "gulp-if": "^1.0.0",
    "gulp-imagemin": "^0.2.0",
    "gulp-livereload": "^1.3.1",
    "gulp-resolve-dependencies": "^0.1.0",
    "gulp-autoprefixer": "0.0.7"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}