* Make minimum/maxium/... value constraints native to the appropriate datatype (from base). * Change validation for minimum/maximum/... as well as length/... constraints to `#validate!`. * Unify checking value constraints.
* Make minimum/maxium/... value constraints native to the appropriate datatype (from base).
* Change validation for minimum/maximum/... as well as length/... constraints to `#validate!`.
* Unify checking value constraints.

ruby-rdf/rdf-tabular,ruby-rdf/rdf-tabular