Add flagging API.

src/person.js

@@ -2,6 +2,7 @@
 
 var assert   = require('assert');
 var resource = require('./resource');
+var _        = require('lodash');
 
 function requireEmail (options) {
   assert(options.email, 'An email must be provided');
@@ -12,7 +13,17 @@ exports.Person = resource.create('Person', {
   path: '/people/email/<%= email %>',
   queryKeys: 'subscribe'
 })
-.on('preFind', requireEmail);
+.on('preFind', requireEmail)
+.include({
+  flag: function(params, options){
+    return this.client.request(_.extend({
+      api: this._options.api,
+      method: 'post',
+      path: _.template('/people/<%= id %>/flag', this),
+      query: params || {}
+    }, options))
+  }
+});
 
 exports.PersonCompany = resource.create('PersonCompany', {
   api: 'person',

src/resource.js

@@ -27,7 +27,12 @@ ClearbitResource.find = Promise.method(function (options) {
   }, options))
   .bind(this)
   .then(function (data) {
-    return new this(data);
+    return new this(
+      _.extend({}, data, {
+        _options: this._options,
+        client:   this.client
+      })
+    );
   })
   .catch(isQueued, function () {
     throw new this.QueuedError(this._name + ' lookup queued');
@@ -48,7 +53,7 @@ exports.create = function (name, options) {
   var Resource = function () {
     ClearbitResource.apply(this, arguments);
   };
-      
+
   _.extend(Resource, new EventEmitter(), EventEmitter.prototype, ClearbitResource, createErrors(name), {
     _name: name,
     _options: _.extend({}, options, {
@@ -65,6 +70,11 @@ exports.create = function (name, options) {
     on: function () {
       Resource.on.apply(Resource, arguments);
       return this;
+    },
+
+    include: function (props) {
+      _.extend(Resource.prototype, props);
+      return this;
     }
   });
 };