more scopes and sort methods
response index updates
sort include children
drop admin permissions. group for admin include children
response show. refactoring
% complete bug
hide number search if not super
add group/master links to worker index. stub behavoir for users by parent...
user % complete
stub out user doc id
drop registration model.  user has 1 group
workers by doc_id.  by_group_id return nil if no group id