Add register definition to hapi

hapi/hapi-tests.ts

@@ -5,6 +5,26 @@ import Hapi = require('hapi');
 // Create a server with a host and port
 var server = Hapi.createServer('localhost', 8000);
 
+// Add plugins
+var plugin: any = {
+	register: function (plugin: Object, options: Object, next: Function) {
+		next();
+	}
+};
+
+plugin.register.attributes = {
+	name: 'test',
+	version: '1.0.0'
+};
+
+server.pack.register(plugin, (err: Object) => {
+	if (err) { throw err; }
+});
+
+server.pack.register([plugin], (err: Object) => {
+	if (err) { throw err; }
+});
+
 // Add the route
 server.route({
 	method: 'GET',

hapi/hapi.d.ts

@@ -103,6 +103,7 @@ declare module Hapi {
 
 	export class Pack {
 		require(name: string, options: {}, callback: Function): void;
+		register(plugins: any, options?: Object, callback?: Function, state?: Object): void;
 	}
 
 	export interface ServerView {