Cookie Domain for subdomain

COOKIE DOMAIN must be set in config if user want to use COOKIE DOMAIN.

Please consider to put DOMAIN HOST at config.php too…
issue #814 option to re-send activation email if the user misses the first one. There's a hard limit to one email per 20 minutes to avoid spam.
oups I missed to delete that variable
issue #1004 added a hook to delete preferences or files/pages/... when a theme is delete
Merge pull request #1103 from conejoninja/814

issue #814 option to re-send activation email if the user misses the fir...
Merge pull request #1104 from conejoninja/1004

issue #1004 added a hook to delete preferences or files/pages/... when a...
Merge pull request #1084 from byteGator/D--Cookie-Domain

Cookie Domain for subdomain (#1031 and #936)