[TASK] Update CKEDITOR to 4.6.2

New features:
* Added a new pastel color palette for the Color Button plugin and a
new config.colorButton_colorsPerRow configuration option for setting
the number of rows in the color selector.
* Added a new Azerbaijani localization.
* It is now possible to group Widget style definitions, so applying
one style disables the other.

Fixed Issues:
* [Chrome] Fixed: It is possible to type in an unfocused inline editor.
* Fixed: Font size and font family reset each other when modified at
certain positions.
* [Edge] Fixed: List items are lost when pasted from Word.
* [Edge] Fixed: A list gets pasted from Word as a set of paragraphs.
Added the config.pasteFromWord_heuristicsEdgeList configuration option.
* Fixed: Context menu items can be dragged into the editor.
* [IE] Fixed: Copy Formatting breaks the editor in Quirks Mode.
* [IE] Fixed: Copy Formatting breaks the editor in Compatibility Mode.
* Fixed: Styles applied with Copy Formatting to a single table cell
are applied to the whole table.
* Fixed: element.setSize sets incorrect editor dimensions if the
border width is represented as a fraction of pixels.
* [Firefox] Fixed: Unable to paste images as Base64 strings when
using Clipboard.
* Fixed: JavaScript error is thrown when trying to use Find in
a <div>-based editor.

Resolves: #79689
Releases: master
Change-Id: I7e610452ffbab821325cd565dd02fd7bf84fc918
Reviewed-on: https://review.typo3.org/51584


Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>