Tidy up "system_routes_edit.php" XHTML

Close INPUT, BR and IMG tags and add alt to IMG tags
Update HTML boolean operators
Remove name statements from DIV tags
Add missing end TD, end TR and end FONT tags
Add CDATA sections to SCRIPT tags
Merge pull request #528 from ExolonDX/branch_22

Tidy up "system_routes_edit.php" XHTML