Ubnt-115 firmware bug fixes

[ubnt-115]

I have uploaded bug fixes to firmware and sourec code.

- Dynamic DNS client was reimplemented.
- Busybox httpd starts with -h option (H: option was removed from http.conf
for compatibility with old versions of busybox).
- Bug in firewall (NAT) was fixed.
- Bug in build configuration was fixed (Modules for iptables was added).
- Added support of Broadcom based routers like ASUS-WL500G Premium

eth0 ip-address 192.168.24.1/24
username root / password root

Fixes was uploaded to ubnt store

[rmichael]

What is the procedure for reverting back to ubnt firmware from Nethe installed on NS5M?