old_contents: module.exports = function(grunt) {
  
      grunt.initConfig({
        respimg: {
          default: {
            options: {
              widths: [200, 400]
            },
            files: [{
              expand: true,
              cwd: 'image/',
              src: ['**.{gif,jpg,png,svg}'],
              dest: 'build/img/'
            }]
          }
        },
      });
      grunt.loadNpmTasks('grunt-respimg');
      grunt.registerTask('default', ['respimg']);
  };
new_contents: /*
   After you have changed the settings at "Your code goes here",
   run this with one of these options:
    "grunt" alone creates a new, completed images directory
    "grunt clean" removes the images directory
    "grunt responsive_images" re-processes images without removing the old ones
  */
  
  module.exports = function(grunt) {
  
    grunt.initConfig({
      responsive_images: {
        dev: {
          options: {
            engine: 'im',
            sizes: [{
          width: 110,
              name: "small",
              quality: 40
            },{
              width: 220,
              quality: 100
            },{
              width: 330,
              name: "large",
              quality: 80
            },{
              width: 660,
              name: "large",
              suffix: "_x2",  // retina gfx
              quality: 50
            },{
              createNoScaledImage: true,
              width: 1660,
              name: "largest",
              quality: 50
              }]
          },
          files: [{
            expand: true,
            src: ['*.{gif,jpg,png}'],
            cwd: 'images/',
            dest: 'build/img/'
          }]
        }
      },
      /* Clear out the images directory if it exists */
      clean: {
        dev: {
          src: ['build/img'],
        },
      },
      /* Generate the images directory if it is missing */
      mkdir: {
        dev: {
          options: {
            create: ['build/img']
          },
        },
      },
  
      /* Copy the "fixed" images that don't go through processing into the images/directory */
      copy: {
        dev: {
          files: [{
            expand: true,
            src: 'images/fixed/*.{gif,jpg,png}',
            dest: 'build/img/'
          }]
        },
      },
    });
    
    grunt.loadNpmTasks('grunt-responsive-images');
    grunt.loadNpmTasks('grunt-contrib-clean');
    grunt.loadNpmTasks('grunt-contrib-copy');
    grunt.loadNpmTasks('grunt-mkdir');
    grunt.registerTask('default', ['clean', 'mkdir', 'copy', 'responsive_images']);
  
  };
  
subject: resolve conflict on local branch