ADD ability to recreate all checksums to update_checksums.php which is useful if  is changed

git-svn-id: http://svn.montala.net/svn/resourcespace@5336 c08608d7-6e46-0410-86ca-f2a6f1370df5
CHG: Changed 'asort' to 'natsort' for checkbox field auto-sorting. Means that keywords prefixed with numbers are ordered correctly.


git-svn-id: http://svn.montala.net/svn/resourcespace@5337 c08608d7-6e46-0410-86ca-f2a6f1370df5
ADD class to Download table's filename cells on view.php

git-svn-id: http://svn.montala.net/svn/resourcespace@5338 c08608d7-6e46-0410-86ca-f2a6f1370df5