v4.0.0

Added

• Model fill() example
• Model methods:
  • checkUnknownColumn()
  • checkReadOnly()
  • getIterator()
  • getRequiredColumns()
  • isFresh()
  • onColumnChange()
  • undo()

Changed

• Update aryelgois/utils
• Forbid assigning a fresh foreign model
• validateHook() only receives the data to be validated
• Person methods
• Rename Hook to Event
• Improve exceptions

Removed

• setMultiple()

Fixed

• ModelIterator and ModelManager __construct(): Ensure a model class is used,
  and not a model instance
• Delete fresh soft model