Pass WP_Customize_Setting instance to 'customize_preview_*' and 'customize_update_*' actions.

props dustyn, DrewAPicture.
fixes #27979.
Built from https://develop.svn.wordpress.org/trunk@28767


git-svn-id: http://core.svn.wordpress.org/trunk@28580 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE: update to 4.0.28+. Includes all changes until 09-06-2014: https://github.com/tinymce/tinymce/tree/32cb108d41b27265c60a8bc1f62855fdfb61e486. Changelog: https://github.com/tinymce/tinymce/blob/32cb108d41b27265c60a8bc1f62855fdfb61e486/changelog.txt.
See #28391.
Built from https://develop.svn.wordpress.org/trunk@28768


git-svn-id: http://core.svn.wordpress.org/trunk@28581 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Pass WP_Customize_Setting instance to 'customize_save_*' action.

props danielbachhuber.
fixes #27979.
Built from https://develop.svn.wordpress.org/trunk@28769


git-svn-id: http://core.svn.wordpress.org/trunk@28582 1a063a9b-81f0-0310-95a4-ce76da25c4cd