Merge pull request #102 from aronwoost/patch-01

Emit socket errors, so they can be handled

lib/Tunnel.js

@@ -88,6 +88,11 @@ Tunnel.prototype._establish = function(info) {
         self.emit('url', info.url);
     });
 
+    // re-emit socket error
+    tunnels.on('error', function(err) {
+        self.emit('error', err);
+    });
+
     var tunnel_count = 0;
 
     // track open count