Merge pull request #1 from tobyattagman/fix-test-connection-interrupt…

…-node-0.10

the test works in node 0.8 but in 0.10.15 the cbProxy is called twice be...

lib/LazySocket.js

@@ -24,6 +24,13 @@ LazySocket.prototype.write = function(/* data, encoding, cb */) {
   if (typeof cb === 'function') {
     var cbProxy = function() {
       var index = self._callbacks.indexOf(cbProxy);
+
+      if (index < 0) {
+        //  callback has already been called and removed from the
+        //  callback list
+        return;
+      }
+
       self._callbacks.splice(index, 1);
 
       return cb.apply(this, arguments);