Use build_query instead of http_build_query so that a sane set of defaults is used.

Some hosts have the default separator set to '&amp;'. ("Some hosts" are doing it wrong.)

props to eoigal for hunting down this cause of failed API requests.


git-svn-id: https://plugins.svn.wordpress.org/akismet/trunk@899801 b8457f37-d9ea-0310-8a92-e5e31aec5664
No need to use str_ireplace when its older brother str_replace will do.


git-svn-id: https://plugins.svn.wordpress.org/akismet/trunk@899802 b8457f37-d9ea-0310-8a92-e5e31aec5664