title: my_thread_global_end threads didn't exit, error?
body: <p>I am using MySQL c++ connector (1.0.5) , recently I moved get_driver_instance() and connect() methods to secondary thread then I am getting below error. </p>
  
  <blockquote>
    <p>Error in my_thread_global_end(): 1 threads didn't exit</p>
  </blockquote>
  
  <p>After googling I found that mysql thread isn't exiting. Is there a method in c++ wrapper to do cleanup?</p>