- Avoid non-pointer use of `FILE` type since its just a forward declaration
 - Build with -D_GNU_SOURCE to expose required `struct tcphdr` members

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

- update to latest version (v2.0.4)
 - use PKG_INSTALL
 - add DBI plugin
 - convert init script to procd
 - add license info
 - add myself as maintainer

Signed-off-by: Nicolas Thill <nico@openwrt.org>