Revisions: use escaped templating for some of the tags.

Fixes #24775.

git-svn-id: http://core.svn.wordpress.org/trunk@24729 1a063a9b-81f0-0310-95a4-ce76da25c4cd
If two revisions were created at the same time, mark the one with the greater ID as current. Also avoid flagging autosaves as current. fixes #24782.



git-svn-id: http://core.svn.wordpress.org/trunk@24730 1a063a9b-81f0-0310-95a4-ce76da25c4cd
XML-RPC: Recursively escape arrays as before, to avoid stomping nested objects. fixes #21767.



git-svn-id: http://core.svn.wordpress.org/trunk@24731 1a063a9b-81f0-0310-95a4-ce76da25c4cd