Updated CKEditor to 4.6.1

[Liongold]

Fixes #723. May also improve the auto-save situation, as described in #725.

Fontawesome support is missing.

@mrusme Does this make the pull request unmergeable?

[Liongold]

Thanks to the new commit added, this also replaces #730.

[Liongold]

Closing and reopening request to generate builds

[kevthehermit]

Do you know when this will get merged, wanting to update my production instance, but its docker so need to wait for this

[Liongold]

@mrusme Do you have any time to check this out please?

[mrusme]

@Liongold I'm not 100% sure about this. Have you tested it locally?

[Liongold]

@mrusme Yes, I've tested it. If you are uncertain about anything, no problem, I can test it in a better way. However, if it isn't a problem for you, could you take care of the other requests? They should be small updates but are pending for quite some time.

[Liongold]

As I've said, the Font Awesome plugin is missing because there does not seem to be a plugin for this version.

[kevthehermit]

@Liongold @mrusme any movement on this, Or shall i just create my own fork for now.

[Liongold]

@kevthehermit I don't have any more information to share on this.

[mrusme]

@kevthehermit feel free to fork -> implement -> PR. :-) 👍

[Liongold]

Thanks @mrusme for taking a look at all the pending requests.

[mrusme]

@Liongold sure thing, sorry for the delay