Added a filter to disable logging of Akismet debug information.

The filter (akismet_debug_log) defaults to the same value as WP_DEBUG_LOG. To disable:

add_filter( 'akismet_debug_log', '__return_false' );



git-svn-id: https://plugins.svn.wordpress.org/akismet/trunk@987350 b8457f37-d9ea-0310-8a92-e5e31aec5664