add dependencies to event emitter

lib/server.js

@@ -5,6 +5,8 @@ var $ = require('preconditions').singleton();
 var async = require('async');
 var log = require('npmlog');
 log.debug = log.verbose;
+var inherits = require('inherits');
+var events = require('events');
 
 var Bitcore = require('bitcore');
 var PublicKey = Bitcore.PublicKey;
@@ -33,6 +35,13 @@ function CopayServer(opts) {
 	this.storage = opts.storage || new Storage();
 };
 
+inherits(CopayServer, events.EventEmitter);
+
+CopayServer._emit = function (event) {
+  var args = Array.prototype.slice.call(arguments);
+  log.debug('Emitting: ', args);
+  this.emit.apply(this, arguments);
+};
 
 /**
  * Creates a new wallet.

package.json

@@ -21,6 +21,7 @@
     "bitcore": "^0.8.6",
     "bitcore-explorers": "^0.9.1",
     "express": "^4.10.0",
+    "inherits": "^2.0.1",
     "leveldown": "^0.10.0",
     "levelup": "^0.19.0",
     "lodash": "^2.4.1",