Adds second pass with better progress logging
Adds parent mapping and better second pass
Caches record IDs for performance (Mongoid, AR)
Persists with validations (AR)
Fixes Guard setup
Drops unused gem
Adds #children and #leaves to clusters (all adapters)
Works around geohash storage issues (Sequel)
Removes leftovers
Caches cluster dimensions, adds #radius and #density
Speeds up sum-of-squares calculation and adds caveat
Adds #mass_update and #new_record? (all adapters)
Fixes loading issue in root adapter module