Log Message:
Update zebedee package to 2.5.3 which includes security fix (possible DoS).

* Release 2.5.3

Fix file descriptor leak when IP address lookup fails.

Fix problem with running a server in "reverse" mode and detached -- only
apparent on Windows.

Add "maxconnections" to alleviate DoS attack.

Check for target port 0 to avoid DoS.

Linux 64-bit port (a result of the "Linux on POWER" contest) courtesy of
Stew Benedict <stewb@linuxcontrol.net>. Use the "linux64" OS target.

Upgraded version of bzip2 and zlib.