Backport parameters for API::Users
Backport parameters for API::Users

This backports the EE specific parameters for API::Users, and wraps them
in a conditional.

mmkassem/gitlabhq,iiet/iiet-git,iiet/iiet-git,stoplightio/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,iiet/iiet-git