Remove icon

It's not needed, since we're using the stock lock icon. It should be
there in every installation.
Show the command name in the --help message
Fix string for gettext parsing
Add initial Makefile

Some rules are just stubs for now
Add Makefile rules for translation files
Clean leftover po backup files
Add .po files

po files were generated from borrowed po files from the ktsuss-l10n
project
Update po files

Fix the translated messages, as they are not exactly the same as the
ones in the ktsuss-l10n project.
Add gnsu.pot file