method CrestFsClient::storeData corrected

The method CrestFsClient::storeData corrected.

CrestApi/CrestApiFs.h

@@ -493,7 +493,7 @@ namespace Crest
  * @param endTime - end time, if endtime = 0, the server does not use this parameter in the internal check.
  */   
     void storePayloadDump(const std::string &tag,
-                          uint64_t since,
+			  long_t since,
                           const std::string &js,
                           const std::string &payloadFormat,
                           const std::string &objectType,