NXP-11406: Remove the previous version of tinyMCE.
NXP-11406: Add the version 4.0.21 of TinyMCE.
NXP-11406: Increase the default size of the textarea to fit with the new ui of tinyMCE.
NXP-11406: Configure the new version of tinyMCE.
NXP-11406: Add the Nuxeo plugins.
NXP-11406: Fix issue with the localization by upgrading the version of tinyMCE.
NXP-11406: Changes in the widget structure.