BUG: fixed broken filesize2bytes() function.

* It only parsed upper case units correctly.


git-svn-id: http://svn.montala.net/svn/resourcespace@4668 c08608d7-6e46-0410-86ca-f2a6f1370df5
ADD: Added max file size description text if $plupload_max_file_size is set.


git-svn-id: http://svn.montala.net/svn/resourcespace@4669 c08608d7-6e46-0410-86ca-f2a6f1370df5