TinyMCE: update the 'paste' plugin to the latest dev. version. Included changes: https://github.com/tinymce/tinymce/commit/1b7c41cd7bf61b9709145d9e15f8f8297bbb77d7 and https://github.com/tinymce/tinymce/commit/7998b8025d2cd5d66853aa33680d0ec2a0f7807b. See #27909, for trunk.
Built from https://develop.svn.wordpress.org/trunk@28192


git-svn-id: http://core.svn.wordpress.org/trunk@28022 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Ensure the editor height is saved properly, props jupiterwise, see #28000, for trunk.
Built from https://develop.svn.wordpress.org/trunk@28193


git-svn-id: http://core.svn.wordpress.org/trunk@28023 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove some unnecessary abstraction introduced in [28191]. See #27985.
Built from https://develop.svn.wordpress.org/trunk@28194


git-svn-id: http://core.svn.wordpress.org/trunk@28024 1a063a9b-81f0-0310-95a4-ce76da25c4cd