Add WIP recursive member search strategy
Implement recursive group member search
Clean up unneeded bits
Add Classic members search strategy
Test deep recursion, configurable depth limiting
Include uniqueMember, memberUid in attrs to fetch
Refactor member entry search, add memberUid search, test
Fetch member entries by DN, UID
Doc entries_by_uid method, make internal methods private
Test classic member search strategy
Merge pull request #64 from github/recursive-membership

Recursive group member search strategy