* Replaced remove_filter with a static variable to ensure hook is called once, and other hooks on pre_comment_approved still work as expected
* Closing ticket - http://plugins.trac.wordpress.org/ticket/1625



git-svn-id: https://plugins.svn.wordpress.org/akismet/trunk@803752 b8457f37-d9ea-0310-8a92-e5e31aec5664
* Bug fix: Timeout caused by user clicking on Check for spam button on a large volumn of comments to iterate through
* Added patch from ticket - http://plugins.trac.wordpress.org/ticket/1789
* One mod to patch above - lower sample size from 100 to 50 to avoid consuming too much memory in ajax request


git-svn-id: https://plugins.svn.wordpress.org/akismet/trunk@803760 b8457f37-d9ea-0310-8a92-e5e31aec5664