Display consistent labels in Image post format UI for users with and without unfiltered_html capability. props tollmanz. fixes #24304. see #24291.

git-svn-id: http://core.svn.wordpress.org/trunk@24232 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Update _post_formats_fix_empty_title() description. Make it clear that 'wp_insert_post_data' is a filter, not an action. props DrewAPicture. fixes #24303.

git-svn-id: http://core.svn.wordpress.org/trunk@24233 1a063a9b-81f0-0310-95a4-ce76da25c4cd