AsusWrt-Merlin Firmware 3.0.0.4.374.43.0 for RT-AC68U

Fixes:
- NEW: User-configurable refresh period to trigger a DDNS update after a certain number of days.
- CHANGED: dnsmasq option 252 now defaults to an empty string, to silence broken clients such as Win7.
- CHANGED: Updated miniupnpd to 1.8.20140523.
- CHANGED: Updated openssl to 1.0.0m.
- CHANGED: More backports from OpenSSL 1.0.2, improving SHA performance on ARM routers.
- CHANGED: The JFFS2 partition is now disabled by default after a factory default reset.
- FIXED: Media server page wouldn't let you enable the iTunes server unless you also enabled DLNA (Asus bug)
- FIXED: Restricted guests still had access to the router (Asus bug introduced in GPL 4887)
- FIXED: 6in4 traffic wasn't bypassing CTF if dualwan mode was either disabled or set to failover mode (AC56/AC68)
- FIXED: Single character workgroups were rejected as invalid (Asus bug)
- FIXED: Networks with SSIDs containing single quotes would break the client list (Asus bug)
- FIXED: Traffic Monitor results are wrong on PPPoE connections (Asus bug) (Patch by pinwing, additional debugging by fantom1)
- FIXED: Crash if entering close to 64 MACs plus their names on the MAC filter page.

Important:

- If you were previously using a customized 252 reply (to use with a valid wpad/pac file), you will need to use a postconf script to change the default config instead of appending your own config.
- If you use DNS-based WPAD setting, you will need to remove the 252 option using postconf, as IE will not query for the DNS entry if there is a 252 option through DHCP, even if it fails to connect to it.