buysellads:
Insert step-one code via wp_head, deprecate wp_body_open
Text changes, including additional highlighting of the BSA WP plugin tutorial
Remove English es_ES translation


git-svn-id: https://plugins.svn.wordpress.org/buysellads/trunk@919603 b8457f37-d9ea-0310-8a92-e5e31aec5664