bumped version, added variable declaration

Author: fehguy

lib/swagger.js

@@ -1,5 +1,5 @@
 // swagger.js
-// version 2.0.13
+// version 2.0.15
 
 var __bind = function(fn, me){
   return function(){
@@ -392,7 +392,7 @@ SwaggerResource.prototype.addOperations = function(resource_path, ops, consumes,
       }
       if (o.errorResponses) {
         responseMessages = o.errorResponses;
-        for (j = 0; j < responseMessages.length; j++) {
+        for (var j = 0; j < responseMessages.length; j++) {
           r = responseMessages[j];
           r.message = r.reason;
           r.reason = null;