Fix the usage of i18n before KInstance exists.

See the techbase article about the difference between i18n and
I18N_NOOP. Using i18n before the existence of KInstance would
result in untranslated strings and the inability to use the
"--config" KApplication option.

This problem was signalled by the following warning on the output:

KGlobal::locale(): Warning your global KLocale is being recreated
with a valid main component instead of a fake component, this
usually means you tried to call i18n related functions before your
main component was created. You should not do that since it most
likely will not work

We should look out for this warning in the future.

Also fixed another I18N_NOOP static table to contain 'char *' instead
of QString, to avoid useless usage of qPrintable().