Code that was missed in a previous GPL merge
Updated documentation
Bring back the NAT Connection page

This reverts commit d1b4a30ce6dccea4abb109606ca57797149b557b.
Fixed code formatting
Re-implemented by directly using Ajax; reformatted HTML
Report odmpid (i.e. RT-N66R) when available instead of productid (RT-N66U)
Cleaned up HTML formatting
Increased maximum sshd keys to 4 KB