Upgrade to TinyMCE 4.0.10. bugid:110846
Migrate "mt" and "mt_fullscreen" plugin for TinyMCE 4. bugid:110846
Tweak the styles of .editor-header for TinyMCE 4. bugid:110846
Migrate adapter.js for TinyMCE4. bugid:110846
Upgrade script loader to use TinyMCE 4. bugid:110846
Update L10N files for TinyMCE 4. bugid:110846
Update build files for TinyMCE 4. bugid:110846
Update the FormattedTextForTinyMCE plugin for TinyMCE 4. bugid:110846