Replaced xmldb:create-group() with sm:create-group(), as the former is
deprecated.
Replaced xmldb:get-user-groups() (as it is deprecated) with
sm:get-user-groups().
Replaced xmldb:get-group() (as it is deprecated), with
security:get-group().
Merge pull request #116 from jensopetersen/master

vra-related code
Merge remote-tracking branch 'upstream/master'
Replaced xmldb:get-owner(), as it is deprecated, with
security:get-owner().
Replaced xmldb:get-permissions(), and xmldb:permissions-to-string(),
which are deprecated, with security:get-resource-permissions().
Replaced xmldb:remove-user-from-group(), as it is deprecated.
Replaced xmldb:add-user-to-group(), as it is deprecated, with
sm:add-group-member().
Replaced xmldb:get-users(), as it is deprecated, with
sm:get-group-members().
Merge pull request #117 from claudius108/master

Replaced the last set of deprecated functions