xenopsd now uses cmdliner for argument parsing

This involves replacing "-foo" with "--foo".

See [xapi-project/xenopsd#119]

Signed-off-by: David Scott <dave.scott@citrix.com>
xenopsd: install manpages

Signed-off-by: David Scott <dave.scott@citrix.com>
xenopsd: man pages are magically compressed by RPM

Signed-off-by: David Scott <dave.scott@citrix.com>
Merge pull request #74 from djs55/xenopsd-cmdliner

xenopsd now uses cmdliner for argument parsing