Redone the notifications to work with the new Request model.
Note that it might be necessary to introduce a templatetag that translates a internal role_name to a real verbose name. However this will do fine for now.
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."
});