Added spamfilter white- and blacklists.

interface/web/mail/form/spamfilter_blacklist.tform.php

interface/web/mail/form/spamfilter_whitelist.tform.php

interface/web/mail/lib/lang/en_spamfilter_blacklist.lng

interface/web/mail/lib/lang/en_spamfilter_blacklist_list.lng

interface/web/mail/lib/lang/en_spamfilter_whitelist.lng

interface/web/mail/lib/lang/en_spamfilter_whitelist_list.lng

interface/web/mail/lib/module.conf.php

interface/web/mail/list/spamfilter_blacklist.list.php

interface/web/mail/list/spamfilter_whitelist.list.php

interface/web/mail/spamfilter_blacklist_del.php

interface/web/mail/spamfilter_blacklist_edit.php

interface/web/mail/spamfilter_blacklist_list.php

interface/web/mail/spamfilter_whitelist_del.php

interface/web/mail/spamfilter_whitelist_edit.php

interface/web/mail/spamfilter_whitelist_list.php

interface/web/mail/templates/spamfilter_blacklist_edit.htm

interface/web/mail/templates/spamfilter_blacklist_list.htm

interface/web/mail/templates/spamfilter_whitelist_edit.htm

interface/web/mail/templates/spamfilter_whitelist_list.htm