Add openstack logging client to replace rsyslog::client

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Fix verbose,debug,syslog facilities and level

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Merge branch 'feat_logging_server' into fix_835_fuel777rebased
Undo global scopes for swift templates

Fuel-lib's vars from top scope (site.pp) aren't top scoped
at fuel-web, thus, need to be passed to classes via its own vars

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>