add reconnect require delegate

[leoru]

Hi! I added new delegate method socketIORequireReconnect: which allows hadle reconnect event and manually make reconnect to socket.

[isayeter]

thank you, great work, but you forgot to say:

in delegate class add this:

-(void)socketIORequireReconnect:(SocketIO*)ula
{
[ula connectToHost:@"host" onPort:@"port"];
NSLog(@"connection is in disconnected status, trying to reconnect.");
}