edit registerTask LVH
add tasks folder
delete grunt.loadNpmTasks('grunt-spritesmith'),  grunt.registerTask('mobSiteLVH', ['sprite:mobSiteLVH']), grunt.registerTask('webSiteLVH', ['sprite:webSiteLVH']), grunt.registerTask('paymentLVH', ['sprite:paymentLVH'])
generated files for MD
add payment sprite for MD
add webSite sprite for MD
add payment sprite for SD
add webSite sprite for SD
addd grunt.loadNpmTasks('grunt-spritesmith');