Added compareTo, shallowEquals, deepEquals
Added shallowEquals, deepEquals
Changed count to a long for convenience. Added toEntities(), shallowEquals(), deepEquals()
Added shallowEquals, deepEquals
Added getEntityKey(), toEntities(), deepEquals(), shallowEquals().

Also don't load other user privs from datastore if loading by list
Added toEntities, shallowEquals, deepEquals
Fixed lookup of other users who have given privs on list to this user.  Added toEntities(), deepEquals(), toJson()
Changed CategoryInfo to sorted set
Changed count to long
Changed count to long. removed some unused timestamp fields
Fleshed out