Reverted for now so we can merge Asus's extensive changes in GPL 376_xxx.

Revert "Fix violation of RFC 3633: include Prefix Delegation's valid lifetime in router advertisements"

This reverts commit 01d8805849cdd30b801065284c67862ed1557aa1.

Conflicts:

	release/src/router/dhcpv6/dhcp6c_script.c
	release/src/router/shared/defaults.c
Revert "Set svc_ready flag only when ntpclient notified us back that all was OK"

This reverts commit 4ffec38b4f38d78d487979af758dc7010623aec6.
Merge with GPL 376_1088 (RT-AC87U codebranch)
Tweak target profiles, for testing purposes (and ensuring stuff fits in the 32 MB partition)
webui: Keep the old traffic monitoring pages
aicloud: QTN versions of precompiled modules are linked against libqcsapi, so they cannot be used for non-QTN builds
ipsec: removing from ARM devices since it breaks the new DPI engine (kernel symbols version issues)
ipsec: Fix building with IPSec disabled
Ensure QTN's reset request or the TURBO button toggles aren't affected by Stealth Mode
ARM kernel: removed support for L7 Netfilter module as it's incompatible with the new DPI modules
Adjust target profiles, fixed typo in AC87U profile causing network issues
webui: Fixed DNSFilter, legacy TrafMon/IPTraffic, Tools
webui: Report RT-AC87U CPU temp
bbox: Apply GPL 376_1088 patches
webui: Merged VPN changes from GPL 376_1088
Updated emf Makefiles to properly use BCMEX
Gitignore tftp built executables
Git ignore binary files from libqcsapi
Merged vlan from GPL 376_1088
webui: Fixed Parental Control on non-DPI builds; inserted DNSFilter section to Home Security page for DPI-enabeld builds