curvetun: give short note in version info

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
build: for an -rc release exclude curvetun for now

As curvetun needs to undergo some major cleanups, we exclude it from
the main build process for the moment until we have fixed all of it
in a non-rc release.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
build: refactor tool specific flags into <tool>/Makefile

To get the normal Makefile a bit cleaner, push the tool specific
build options into <tool>/Makefile.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
dissector: rename __WITH_PROTOS into HAVE_DISSECTOR_PROTOS

To be more consistent with config.h, rename __WITH_PROTOS into
HAVE_DISSECTOR_PROTOS.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>