Reapply "netatalk: Disable checking for dtrace"

If dtrace was detected on the host it would be enabled, even
though it's not available on the target.

Reapply commit 5497d31 which was unintentionally reverted in 1d3f779.
netatalk: fix modified configure
webui: Don't process DLNA paths if DLNA isn't enabled, so we can support enabling only DAAPD
Merge branch 'master' of github.com:RMerl/asuswrt-merlin
Bumped revision to 374.43 alpha 1
Merge pull request #625 from saintdev/for-upstream

Fix Asus modified netatalk configure v2
webui: Display a warning on the Performance tab if current bootloader doesn't support Turbo mode (AC68U)
lan: Fix broken BROUTING rule that no longer prevented router access from restricted guests (was broken in GPL 4887)
Provide an empty WPAD URL for broken Windows/IE clients.

I considered making it default to http://router.asus.com/ which would have provided
out-of-the-box support for PAC (Asuswrt-Merlin supports it), but I feared that it
might have caused long delays for clients using the router DHCP but not its resolver.

This change in behaviour means that people using a customized WPAD option will need
to use a postconf script to modify the existing entry now instead of just appending
it to the existing options.
Updated documentation
Don't count both ppp0 and underlying interface in netdev_calc
Equality check was inverted
Merge pull request #628 from pinwing/master

Do not count transferred and received bytes twice in case of PPPoE
Fix traffic monitor
Don't set ifname_desc2 if both rx2 and tx2 are 0
Overflow cases must be taken into account
miniupnpd: updated to 1.8.20140523
Merge branch 'master' of github.com:RMerl/asuswrt-merlin
firewall: Mark IPv6 packets for CTF bypass when using a 6in4 tunnel and dualwan is either disabled or set to failover
webui: Accept single-character workgroup name