Update TinyMCE to 4.5.6. Has many improvements and bug fixes. Changelog: https://github.com/tinymce/tinymce/blob/4.5.x/changelog.txt.
Merges [40398] to the 4.7 branch.
Props programmin, eclev91 and boldwater for finding and reporting this. Fixes #40305.
Changeset view not shown, since the total size (4.3 MB) exceeds 4.0 MB