[TASK] Update CKEDITOR to 4.7.0

Updates the version of CKEditor to 4.7.

This update fixes 30+ bugs, that can be seen here:
http://ckeditor.com/release/CKEditor-4.7.0

In addition there will be simpler tables, better
support for CSP, better paste from Excel and
Word and so on.

Added one fix to the typo3link plugin.

Resolves: #81483
Releases: master, 8.7
Change-Id: Id5a023e5bf9ad9bfac5e7c9c103670978ef95d8f
Reviewed-on: https://review.typo3.org/53138


Reviewed-by: Anders Kostending <aha@systime.dk>
Tested-by: Anders Kostending <aha@systime.dk>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Josef Glatz <josef.glatz@typo3.org>
Tested-by: Josef Glatz <josef.glatz@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>