Added template hooks in the JS template compiler. Attach to thook_<template hook name>. Use Echo() to echo HTML; access compiler instance with Template.tpl_{strings,bool}, etc.
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."
});