Make remaining about strings translatable. Final tweaks to strings and ordering of "Under the Hood". see #24832.



git-svn-id: https://core.svn.wordpress.org/trunk@24892 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Introduce wp_safe_remote_request(). Also wp_safe_remote_head(), wp_safe_remote_get(), wp_safe_remote_post().

Reverts [24482].

see #24646.



git-svn-id: https://core.svn.wordpress.org/trunk@24894 1a063a9b-81f0-0310-95a4-ce76da25c4cd