Update the group policy to allow >= maintainer to create subgroups
Update the group policy to allow >= maintainer to create subgroups

All specs passing

mmkassem/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq