make the HTML main page available as `man 7 libnetfilter_queue`

Without this patch, man page users can miss important general information.

The HTML display stays as it was.
The man3 pages are updated to reference libnetfilter_queue.7.
build_man.sh must be invoked with arguments to activate man7 generation,
so will continue to work in other projects as before.
build_man.sh remains generic,
so should be able to make man7 pages for other netfilter projects.

v2: Change commit message from "how" to "why"

v3: Confine man page generation to build_man.sh per Pablo request;
    Add build_man.sh to doxyfile.stamp dependencies (should have always been)

Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au>
Signed-off-by: Florian Westphal <fw@strlen.de>

0 files changed, 0 insertions, 0 deletions