// 'error.no_groups' => 'Your database is empty. Login as admin and create a new group.',
// 'error.upload' => 'File upload error.',
// 'error.range_locked' => 'Date range is locked.',
-// 'error.mail_send' => 'Error sending mail.',
+// 'error.mail_send' => 'Error sending mail. Use MAIL_SMTP_DEBUG for diagnostics.',
// 'error.no_email' => 'No email associated with this login.',
// 'error.uncompleted_exists' => 'Uncompleted entry already exists. Close or delete it.',
// 'error.goto_uncompleted' => 'Go to uncompleted entry.',
// 'form.group_edit.future_entries' => 'Future entries',
// 'form.group_edit.uncompleted_indicators' => 'Uncompleted indicators',
// 'form.group_edit.allow_ip' => 'Allow IP',
-// 'form.group_edit.plugins' => 'Plugins',
// Deleting Group form. See example at https://timetracker.anuko.com/delete_group.php
// TODO: translate the following.