Redactor 2.3.3 ready to use with MODX3

Following MoreGallery’s release earlier today, Redactor 2.3.3 is now also ready to be installed on MODX3.

Along with the installation fix all our premium extras need, this also fixes an issue where the language file wasn’t loaded due to a change in how MODX3 manages the current language (stored in session, instead of setting).