This disables the sending of the "close notify" shutdown alert, only
after a network failure took place, and not during normal closing of a
connection.
When a "Connection reset by peer" error was caused while reading through SSL, a
restoration of the session should have taken place after all the connection
related structures were resetted. But instead a silent, unexpected and
unaccountable exit was the end result. This was caused by the underlying
socket being closed while trying to shutdown the SSL session.
There is no point in having SSL/TLS IMAP support as optional, it's as
useful if not more than the the non-encrypted connections.
The Makefile was better organized to make it easier to change some
options during compile.
The SHAREDIR variable passed as configuration option has changed name.
Move the source code to the src dir, the man pages to the doc dir, and
the example configuration files to the samples dir, and update all
relevant files to reflect the changes.
