1.5

- Removed all references to CMFMember or Membrane, now depends on
  recent membrane release (1.0b2 or greater).
  [rafrombrc]


1.3

- Added 'MemberTeamRelation' class, maintaining references btn the
  Member and the Team objects (instead of just TeamMembership and
  Member) in order to speed up roster-like operations.
  [rafrombrc]
  
