fixed tnc not listening to default SSIDs ( here we need to adjust the GUI for supporting changing SSIDs ). Also improved the chat interface a little bit - we have now separated control buttons instead of within a message.
it seems, pyaudio isnt terminated correctly. running it within a subprocess which will be closed after execution, pyaudio seems to be terminated and not causing a problem anymore on raspberry pi. Yay
..and some other changes to the gui so its compatible again with the latest socket commands. The rx buffer has now a unique id, and new structure. Also all messages and files will be saved to the same buffer. All commands which will be sent to the tnc or dameon are now written in lowercase
