Fix conntrack with --bind-interfaces

Make sure dst_addr is assigned the correct address in receive_query when OPTNOWILD is
enabled so the assigned mark can be correctly retrieved and set in forward_query when
conntrack is enabled.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Use inotify instead of polling on Linux.

This should solve problems people are seeing when a file changes
twice within a second and thus is missed for polling.
Merge branch 'inotify'
Merge branch 'master' into ASUSTomatomaster