New updateItem method on List for #1705 (WIP)

lib/list.js

@@ -173,7 +173,7 @@ List.prototype.processFilters = require('./list/processFilters');
 List.prototype.register = require('./list/register');
 List.prototype.relationship = require('./list/relationship');
 List.prototype.selectColumns = require('./list/selectColumns');
-List.prototype.set = require('./list/set');
+List.prototype.updateItem = require('./list/updateItem');
 List.prototype.underscoreMethod = require('./list/underscoreMethod');
 
 /*!

lib/list/updateItem.js

@@ -0,0 +1,9 @@
+function updateItem (item, options, callback) {
+	var data = options.data || {};
+	this.fieldsArray.forEach(function(field) {
+		field.updateItem(item, options.data);
+	});
+	item.save(callback);
+}
+
+module.exports = updateItem;