Renamed to "tio" because it is shorter and this new name also more
precisely reflects what the program is - a simple TTY terminal I/O
application.
"tio" can be considered short for terminal I/O or TTY I/O or a
combination of the two, whichever you prefer.
Also, wanted to avoid naming conflicts with other projects.
Autocompletion now resolves all arguments.
Also renamed 'gotty-bash-completion.sh' to 'gotty' to comply with the
normal naming scheme for completion files in /etc/bash_completion.d .