Issue #3541858 by abel-santos and escuriola: Upgrade Tone.php with latest...

Abel S. C.requested to merge
issue/ai_ckeditor_extras-3541858:3541858-adapt-module-to into 1.0.x

Issue #3541858 by abel-santos and escuriola: Upgrade Tone.php with latest changes in CKEditorPluginBase.

Closes #3541858

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