updated swagger-js

dist/lib/swagger.js

@@ -1,5 +1,5 @@
 // swagger.js
-// version 2.0.17
+// version 2.0.19
 
 var __bind = function(fn, me){
   return function(){
@@ -980,7 +980,7 @@ var SwaggerRequest = function(type, url, params, opts, successCallback, errorCal
   }
   for (name in this.headers)
     myHeaders[name] = this.headers[name];
-  if (requestContentType)
+  if (requestContentType && body)
     myHeaders["Content-Type"] = requestContentType;
   if (responseContentType)
     myHeaders["Accept"] = responseContentType;