[Dchub-announce] version 0.4.1 released

[eric]

Changelog:

* clientbot nearly completely rewritten. Patch by Dirk Rieger.

* MD functions are searched in both libSSL and libcrypto.

* bot can send commands (like with v 0.2.5). Be careful, they must send their
  global commands with correctly formatted string ("<botname> command|").

* add script (make_rpm) to make SRPM of dchub (Yves BLUSSEAU)

* all the extprog, scripts and plugins are now install under
  %{prefix}/libexec/dchub
  that is the recommanded directories for GNU softwares. (Yves BLUSSEAU)

* using double fork method in starting extprog to avoid zombie when they die.
  (Yves BLUSSEAU)

* Possible CrashBug fixed in Clientbot dc++Tag decoding. Patch #1332 by
  Dirk Rieger.

* LOCK_PATTERN handling changed. Patch #1339 by Dirk Rieger.

* add a new event: "login". It is sent when a user logs in and contains its IP
  (request #101989).

* fix compilation problem in plugin for platforms where a guint64 is not an
  unsigned long long.

* $Search query return path is analyzed to prevent malformed query to be sent to
  client. This analyze prevents an evil client to send a query with the IP of
  a victim (part of DC network or not) which force other clients to send their
  replies to this victim, a kind of DDoS. This problem was linked to bug #3096.

* Fix the display bug occuring when a bot kicks a user. Patch #1360 by
  Dirk Rieger.

* Sort correctly the array containing command. Bug notified by Dirk Rieger. The
  incorrect order may prevent one or more commands to be recognized.

* fix a configuration problem when detecting MD* functions.

* Before allowing any type of action (chat, xfer, search, ...) from a client,
  the hub wants it to send a valid MyINFO. If no MyINFO is received and the
  client sends a command, it is silently kicked. This feature can be be disabled
  if the key NO_MY_INFO (int) is defined to a non-zero value.

* fix a communication corruption problem occuring when 2 hubs communicate over
  a slow connection.