Added `reference_key` option to `map_attribute`
Removed the unnecessary reverse association
Renamed `primary_reference_key` to `reference_key`
Added API docs links
Preliminary support for ActiveRecord-style attribute-nesting, e.g. `form.fields_for`

Also Datamappify now requires at least ruby 2.0
Tweaked Concerns::UpdatePrimaryRecord
Do not ignore primary records, fixes the persistent issue in edge cases where the primary records don't hold any "real" attributes
Implicit "super"
Respect association's item order, also fixes a nasty gotcha in Sequel where the primary record's ID WILL BE FUCKING REPLACED by the join record's ID… *shrugs*
Don't build on 1.9 anymore
Simpler Sequel API
Validation aggregation for associated entities
Happy cane!
Updated CHANGELOG [ci skip]
Updated ERD
Fixed a bug where in certain situations duplicated data records are created upon updating an entity
Reorganised has_many_spec
Walk entity references in Where and Match
Fixed a bug where reversed mapping option `:via` generates wrong join queries
"Fixed" the reversed association performance degradation