Library upgrade: TinyMCE to version 5

[Rebecca Blundell]

Related to: https://bugs.launchpad.net/mahara/+bug/1827291

This is a new major version with significant changes. Latest version is 5.0.13:
https://www.tiny.cloud/docs/changelog/

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/10269

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/10281

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/10390

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/10424

[Kristina Hoeppner (kris-hoeppner)]

User manual update: Check that the user_id anchor still works. See https://reviews.mahara.org/#/c/10424

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/10269
Committed: https://git.mahara.org/mahara/mahara/commit/ada3e2cd6f87c8d22980f28ffe0dc957308796aa
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit ada3e2cd6f87c8d22980f28ffe0dc957308796aa
Author: Rebecca Blundell <email address hidden>
Date: Mon Aug 19 15:32:57 2019 +1200

Bug 1840112: update tinymce library to 5

Replaced tinymce 4 files with tinymce 5
Moved from unsupported 'light' skin to new 'oxide' skin included with v5.0
Default theme has been changed from 'modern' to 'silver'
Changes to tooltoggle plugin to work with new version
Updated behat steps for change in class names
Styling changes

behatnotneeded

Change-Id: I731962f8c522358034178528846aa0c35187d74a

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/10390
Committed: https://git.mahara.org/mahara/mahara/commit/d4df7fb8ba296aba8e4bed39931c628b0e8c3bde
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit d4df7fb8ba296aba8e4bed39931c628b0e8c3bde
Author: Rebecca Blundell <email address hidden>
Date: Wed Oct 2 19:19:23 2019 +1300

Bug 1840112: Tinymce - spellchecker changes

Add optional plugin for non-browser based spellchecker
as set in $CFG->spellcheckerengine

behatnotneeded

Change-Id: I14e567fda9fd5ab5d751917e9cbbe4e4b065ba9a

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/10424
Committed: https://git.mahara.org/mahara/mahara/commit/427600cc62b123e7f698da9063d6d326f90672a6
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 427600cc62b123e7f698da9063d6d326f90672a6
Author: Rebecca Blundell <email address hidden>
Date: Tue Oct 8 17:04:27 2019 +1300

Bug 1840112: Tiny changes to tinymce

Clarify README

behatnotneeded

Change-Id: I0f3d910f88f49999ca0625c6df60cf723c559007