Fix violation of RFC 3633: include Prefix Delegation's valid lifetime in router advertisements
Merge branch 'master' of https://github.com/RMerl/asuswrt-merlin into ipv6
Initialize lifetime variables
Fix for wrong values
Use inner list
Fix compile error
Cleanup
Pass prefix (and length) to script
Remove debug statements
Pass correct valid and preferred lifetime to radvd
Merged MIPS kernel from GPL 5517
Add other MIPS SDK/build updates from 5517
Use a pkg-config wrapper during cross-compilation.

This prevents the build system from trying to use headers and libraries
on the host machine when building for a different architecture.
flac: Use configure flags instead of *FLAGS variables.

This prevents configure from adding -L/lib/ to OGG_LIBS, which breaks
the build on ARM.
Merge pull request #591 from pinwing/ipv6

Set valid and preferred lifetimes in router advertisements to be no later than the lifetimes of the delegated prefix
Updated documentation
Restart rdnssd service (which includes dhcp6c and radvd) when ntp updates time to proper value for the first time
Stop dhcp6c before starting in case it was already running
openvpn: A few files missed when updating to 2.3.3
Do not start radvd when dhcp6c is stopping
Merged with GPL 374_5656