A user reports that if you have MIT KfW loaded, and your PuTTY session
terminates without the PuTTY process exiting, and you select 'Restart
Session' from the menu, then a crash occurs inside the Kerberos
library itself. Scuttlebutt on the Internet suggested this might be to
do with unloading and then reloading the DLL within the process
lifetime, which indeed we were doing.
Now we avoid doing that for the KfW library in particular, by keeping
a tree234 of module handles marked 'never unload this'.
This is a workaround at best, but it seems to stop the problem
happening in my own tests.
This gets rid of all those annoying 'win', 'ux' and 'gtk' prefixes
which made filenames annoying to type and to tab-complete. Also, as
with my other recent renaming sprees, I've taken the opportunity to
expand and clarify some of the names so that they're not such cryptic
abbreviations.
