Adds p.compact to screen.css
Checks if all contents already exist in node_set_contents
Checks if content ids and positions are numbers in nodecontenteditor.php
Corrects typo in postnews.php
Edits postnews.phtml
Adds .submit_copy to en.css and fr.css
Adds thread_copy_node to thread.inc
Tests null field property with !empty in node_set_contents