Port 4644 UDP and TCP needed for Dukto

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Install on Fedora
2. Try to send message or receive message from others
3.

What is the expected output? What do you see instead?
Cannot see other contacts

What version of the product are you using? On what operating system?
Fedora 17 64-bit

Please provide any additional information below.
Works if firewall is turned off (bad), or 4644 is added to unblock ports for 
UDP and TCP.  UDP needed to see other contacts, TCP to send data.  

Maybe popup a message on linux, or mention it on the google code page.

Original issue reported on code.google.com by mhungerf...@gmail.com on 9 Aug 2012 at 6:10

[GoogleCodeExporter]

Scrub that. Restarted the application and phone. The accept button now shows 
fine. Thanks, great application.

Original comment by craikh...@googlemail.com on 24 Aug 2012 at 7:34