Merge pull request #2 from cubedro/develop

added default secret

lib/node.js

@@ -25,6 +25,7 @@ if(process.env.NODE_ENV === 'production')
 }
 
 var socket = new Socket(process.env.WS_SERVER || 'ws://localhost:3000');
+var WS_SECRET = process.env.WS_SECRET || "eth-net-stats-has-a-secret";
 
 var MAX_BLOCKS_HISTORY = 12;
 
@@ -74,7 +75,7 @@ function Node()
 	web3.setProvider(new web3.providers.HttpSyncProvider('http://' + (process.env.RPC_HOST || 'localhost') + ':' + (process.env.RPC_PORT || '8080')));
 
 	socket.on('open', function open() {
-		socket.emit('hello', { id: self.id, info: self.info, secret: process.env.WS_SECRET });
+		socket.emit('hello', { id: self.id, info: self.info, secret: WS_SECRET });
 		console.log('The connection has been opened.');
 	}).on('end', function end() {
 		self._socket = false;