Expand the advanced link options by default (too many users couldn't see it)...

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