layouts. will eventually add body attribute

gistfile1.txt

layout: {
    "id":60,
    "name":"Customer.io",
    "email_ids":[1035,1036,1281,2784,3726,6585,7021,8197,18130,18226,18352,19678],
    "newsletter_ids":[17,60,364,2266,2293,2462,3004,3063,3161,3598,3599,3600,3694,3729,3730,5397,7984]
}