iser: fix a warning about container_of being redefined

container_of is being defined in list.h and verbs.h differently.
To keep tgtd toe use the container_of from list.h as today, Instead of
wrapping ifndef which exists in verbs.h I moved the inclusion of verbs
to after list.h

Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Update debian build to use local docbook-xsl for generating docs

Building debian package procedure generates a lot of errors generating
the docs and takes forever to finish.
This patch will change the procedure to use local available docbook-xsl.
Added build dependency for docbook-xsl and updated debian build script to
set it as build dependency.

Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>