Bestow sentience upon users. Level up their pronoun.

Props johnbillion
fixes #24513


git-svn-id: http://core.svn.wordpress.org/trunk@24992 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Deprecate get_dashboard_blog().
Remove contextual help for Dashboard Site from the network settings screen.

Props sillybean, ocean90
fixes #24838


git-svn-id: http://core.svn.wordpress.org/trunk@24993 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Set RTL body class for iframes.

Props mitchoyoshitaka
see #24149


git-svn-id: http://core.svn.wordpress.org/trunk@24994 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Silence is_dir() to avoud warning when upload_tmp_dir is outside open_basedir.

Props dpash
fixes #24704


git-svn-id: http://core.svn.wordpress.org/trunk@24995 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Return true from wp_redirect() when redirect successful. Update phpdoc.

Props tivnet
fixes #24969


git-svn-id: http://core.svn.wordpress.org/trunk@24996 1a063a9b-81f0-0310-95a4-ce76da25c4cd