Bug fix for translation class, DB IO connection error set fix

- The translation file reader did an isset on a set variable insetad of
checking if the variable is zero and so never started the translation
system
- The DB IO connection not set was wrongly set. If the connection failed
it is not TRUE and else FALSE. There is a new internal method
getConnectionStatus to query this status it returns TRUE/FALSE depending
if the connection failed

- Update the l10n test page with proper translation tests
  - init OK
  - show current lang/file
  - translation test
  - switch language test

www/configs/config.path.php

@@ -10,8 +10,12 @@
 
 // File and Folder paths
 // ID is TARGET (first array element)
-//	$PATHS['test']['csv_path'] = '';
-//	$PATHS['test']['perl_bin'] = '';
-//	$PATHS['test']['redirect_url'] = '';
+/*$PATHS = array (
+	'test' => array (
+		'csv_path' => '',
+		'perl_bin' => '',
+		'other_url' => '',
+	)
+)*/
 
 // __END__