Don't try to use URL aliases when the node doesn't have one

Fix a notice with undefined node->type when printing system pages

Expand the advanced link options by default (too many users couldn't see it) and move the book link inside the fieldset
Fix #391790: display CCK fields (and labels) better in PDFs generated with TCPDF
Try to fix #414910 by using a smaller default weight
Fix #404052: allow node tabs pages to display the links for system pages
Fix #405564: display the content corner links above the content
Try to use other functions to convert from UTF-8 to ISO-8859-1 for the PDF generation with dompdf

Updated Italian translation by fabrizioprocopio
Updated French translation by xmacinfo

Fix #381586 by Fleshgrinder: add space at the end of the reset button in the send mail form
Fix #372250: Add page title to send mail form and the ability to use the !title token
Improvements to the API index.php
Updated slovak translation by etki

by Zoltan Balogh: Updated Hungarian translation

Improved Turkish translation by drupalhizmetleri
Document print_[format].tpl better in the README.txt

Fix #370870: do not delete node-specific settings when users without permission to change them edit a node