Replace funxtion improved, associative arrays figured out.
DEBUG flag added for diagnostics
Error handling
Added exclude for empty alias.conf and error handling
Removed read-config.bash and renamed test.bash to install_hosts.bash
Renamed test.bash to install_hosts.bash
fixed wordcount (wc) to use words (-w) not lines (-l)
Changed path and directory to aliased_path and aliased_directory for clarity