message: Add LineItemID to LineItem schema
diff: @@ -89,6 +89,7 @@ var TrackingCategorySchema = new Entity.SchemaObject({
  });
  module.exports.LineItemSchema = new Entity.SchemaObject({
  + LineItemID: { type: String },
  Description: { type: String },
  Quantity: { type: Number },
  UnitAmount: { type: Number },
  