Removed double / empty titles and descriptions

interface/web/mail/templates/mail_alias_edit.htm

interface/web/mail/templates/mail_aliasdomain_edit.htm

interface/web/mail/templates/mail_blacklist_edit.htm

interface/web/mail/templates/mail_content_filter_edit.htm

interface/web/mail/templates/mail_domain_catchall_edit.htm

interface/web/mail/templates/mail_domain_edit.htm

interface/web/mail/templates/mail_forward_edit.htm

interface/web/mail/templates/mail_get_edit.htm

interface/web/mail/templates/mail_mailinglist_edit.htm

interface/web/mail/templates/mail_relay_recipient_edit.htm

interface/web/mail/templates/mail_transport_edit.htm

...rface/web/mail/templates/mail_user_autoresponder_edit.htm

interface/web/mail/templates/mail_user_backup.htm

interface/web/mail/templates/mail_user_custom_rules_edit.htm

interface/web/mail/templates/mail_user_filter_edit.htm

interface/web/mail/templates/mail_user_mailbox_edit.htm

interface/web/mail/templates/mail_user_mailfilter_edit.htm

interface/web/mail/templates/mail_whitelist_edit.htm

interface/web/mail/templates/spamfilter_amavis_edit.htm

interface/web/mail/templates/spamfilter_blacklist_edit.htm