Major revamp to sidebar editor. Some behavioral changes as well as being based on jQuery UI Sortables. Creation interface remains the same, but better strings merged in from stable.
tinyMCE.addI18n('en.paste_dlg',{
text_title:"Use CTRL+V on your keyboard to paste the text into the window.",
text_linebreaks:"Keep linebreaks",
word_title:"Use CTRL+V on your keyboard to paste the text into the window."
});