Not copying gnuais.conf to /etc/gnuais.conf. Rather install an example conf file which will be copied to ~/.gnuais.conf when the user first runs it.
Use the configuration file from the home folder instead of the /etc-configuration file
Possible to also run without configuration file
Removed output
Small fixes
Checking if /etc/gnuais.conf. It it does, print a warning message telling that it is not used anymore.