* src/core/aws-config-set.ad[sb], src/core/aws-config.ad[sb],
src/core/aws-default.ads, src/core/aws-server.adb:
(SSL_Session_Cache_Size): New server configuration parameter.
* config/ssl/aws-net-ssl__gnutls.adb:
(Image): Show the SSL session in the GNUTLS debug log format.
Improve debug logging.
* workspace/ssl_version.adb:
Show SSL version for GNUTLS too.
* regtests/0060_hload_sec/s_hload_pack.ad[sb]:
Use SSL_Session_Cache_Size config parameter to control session cache size.
Improve debug logging.
* regtests/0213_check_mem_nossl/check_mem_nossl.adb:
(Check_POP): New routine.
(Check_SMTP): Hide only expected exception.
* src/extended/aws-pop.adb:
(Unchecked_Free): New routine to free Attachment_Access.
(Finalize): For Attachment. Decrement Ref_Count. Close and Free only not
null Content. Free Attachment.Next.
(Finalize): For Message. Decrement Ref_Count. Use Unchecked_Free for
attacments list instead of direct Finalize in loop.
(Initialize): For Message and Attachment. Ref_Count initialized to one.
* workspace/pop.adb:
Limit messages and headers output to 32 items.
