Fixed ticket 76, add the attached files in the issue notification emails.

Beware that you need to update your configuration file to add the new
template filter.

src/IDF/conf/idf.php-dist

@@ -187,6 +187,7 @@ $cfg['template_tags'] = array(
                               );
 $cfg['template_modifiers'] = array(
                                    'size' => 'IDF_Views_Source_PrettySize',
+                                   'ssize' => 'IDF_Views_Source_PrettySizeSimple',
                                    );
 
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