Add preference to select Serial port

[ijdoc]

The Desktop client on Windows seems to be automatically looking for serial ports. This is ok, but it should also be possible to override this by detecting and offering a list of active serial ports to choose from. My computer has the Shield attached to COM6 but all I see in the console is the following:

"Local device found with address 000272A90976 TeclaShieldEmu" which seems to be my linux BT radio

[ijdoc]

After waiting a bit, the console showed the following:

Local device found with address 000272A90976 TeclaShieldEmu
Device Search Completed
00066608E5C9 TeclaShieldUno-E5C9
got in
Connected to TeclaShield
data available 1

This seems to be the correct behaviour but the user doesn't receive any feedback as to the status of the connection. This is a usability issue, any suggestions?

[AKdroid]

The client connects to TeclaShield by looking for bluetooth devices having prefix "Tecla" and having a service record with UUID of Shield.
As for the status notification , i can add a label on the GUI for showing status messages. I have to see if popup messages can be shown when the application is minimized to tray.

the address is the MAC ID of the computer's bluetooth