guardian 2.0: suggested cosmetic changes

I did the following:

- Rearranged the fields on 'guardian.cgi' a bit - in a (hopefully) logical manner,
  so that they don't need so much room.
- Added some translation-strings and explanations to (revised) 'guardian.cgi'.
- Added missing language string(s), deleted obsolete.
- Deleted all guardian entries from standard language files in
  '/var/ipfire/langs'-directory.
- Added (upgraded) addon-specific language files to '/var/ipfire/addon-lang'-directory.

I hope, I didn't forget something...

Best,
Matthias

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Stefan Schantl <stefan.schantl@ipfire.org>

config/guardian/guardian.nl.pl

@@ -0,0 +1,23 @@
+%tr = ( 
+%tr,
+
+'guardian alertfile' => 'Meldingenbestand',
+'guardian configuration' => 'Guardian configuratie',
+'guardian ignorefile' => 'Negeerbestand',
+'guardian interface' => 'Interface',
+'guardian logfile' => 'Logbestand',
+'guardian loglevel_off' => 'Off',
+'guardian loglevel_info' => 'Info',
+'guardian loglevel_debug' => 'Debug',
+'guardian logtarget_syslog' => 'Systemlog',
+'guardian logtarget_file' => 'File',
+'guardian logtarget_console' => 'Console',
+'guardian priolevel_high' => '1 - High',
+'guardian priolevel_medium' => '2 - Medium',
+'guardian priolevel_low' => '3 - Low',
+'guardian priolevel_very_low' => '4 - Very low',
+'guardian timelimit' => 'Tijdlimiet',
+
+);
+
+#EOF