Merge pull request #1881 from ufon/master

socket.io: added handshake; supertest: override set method.

socket.io/socket.io.d.ts

@@ -20,6 +20,7 @@ declare module "socket.io" {
     log: any;
     volatile: any;
     broadcast: any;
+    handshake: any;
     in(room: string): Socket;
     to(room: string): Socket;
     join(name: string, fn: Function): Socket;

supertest/supertest.d.ts

@@ -19,6 +19,11 @@ declare module "supertest" {
       expect(body: Object, callback?: (err: Error, res: superagent.Response) => void): Test;
       expect(field: string, val: string, callback?: (err: Error, res: superagent.Response) => void): Test;
       expect(field: string, val: RegExp, callback?: (err: Error, res: superagent.Response) => void): Test;
+      set(field: string, val: string): Test;
+      set(field: Object): Test;
+      query(val: Object): Test;
+      send(data: string): Test;
+      send(data: Object): Test;
     }
 
     interface SuperTest {