Tidy up "system_firmware_auto.php" XHTML

Add closehead variable
Move META and LINK tags into HEAD and manually close HEAD
Tidy up the TABLE tag, move height and colspacing in to STYLE paramenter
Update TD tag with correct background syntax
Add CDATA sections to SCRIPT tag
Move end BODY and end HTML tags to the end of the file, this helps
reduce the error count from 600-1000+ as the scripts to update the
progress bar are now within the BODY tag.
Merge pull request #515 from ExolonDX/branch_09

Tidy up "system_firmware_auto.php" XHTML