Winet 6.52 released

Update notes:

1. An old or invalid UpdateCode.txt file won’t result in displaying an error that
an invalid code has been entered.
2. Automatic license updates can now be done from a secure https web server.
3270:
3. Natural File Transfer upload: We fixed a bug and improved the speed substantially.
4. A problem with an incomplete Query reply response resulting in a blank screen
when connecting, has been fixed.
5. Inet3270 can allocate LUs from a shared pool file. Contact us for details.