make sure the default for options is an object, not an array

Signed-off-by: Joshua Rubin <jrubin@zvelo.com>

Author: Joshua Rubin

lib/stomp.js

@@ -235,7 +235,7 @@ function Stomp(args) {
     this.session = null;
     this.ssl = args['ssl'] ? true : false;
     this.ssl_validate = args['ssl_validate'] ? true : false;
-    this.ssl_options = args['ssl_options'] || [];
+    this.ssl_options = args['ssl_options'] || {};
 };
 
 Stomp.prototype = new process.EventEmitter();