tighter spam filter

Ignore-this: 22441d6670627eb4151a870eb6d083a4

darcs-hash:20130419021727-312f9-878a88d427cf975a49b709b292dadca8c2fb1cc8
favicon on spam check page

Ignore-this: d454fba5b937438377519a8ebe004e27

darcs-hash:20130419021753-312f9-a8abca1cd49baf826b964d806f629da17af1f56e
get comments with date threshold

Ignore-this: d2a8a71ff2affc1b53e798bea5bb6ad3

darcs-hash:20130419021806-312f9-697b17544a97d5d2d8e91106c5d2fc91b70f35d5