0.0705
  catch up with 'Object::Simple' update
0.0704
  cleanup
0.0702
  cleanup
0.0701
  add 'error' method
  'is_invalid' method can receive a specified key.
0.0608
  update document
  fix corelative key bug
0.0607
  improve error message
  add syntax method for seeing validation rule syntax
0.0606
  improve error message
  delete Validator::Custom::Result errors_to method (not backword compatible)
  delete Validator::Custom::Result products_to method (not backword compatible)
  delete Validator::Custom::Result invalid_keys_to method (not backword compatible)
0.0605
  catch up Object::Simple version up 2.0702
0.0604
  catch up Object::Simple version up 2.0701
0.0603
  catch up Object::Simple version up 2.0603
0.0602
  catch up Object::Simple version up 2.0602
0.0601
  add_constraint method can be used as object method and class method
  constraints method can be used as object mehtod and class mehtod
0.0501
  add 'is_valid' method to Validator::Custom::Result
0.0401
  validate method return Validator::Custom::Result object, not $self (not backword compatible)
  resutls method is renamed to products (not backword compatible)
0.0303
  bag fix: second validation is fail when hash specify as constraint
0.0302
  improve error message
0.0301
  rename validators to validation_rule to understand easy (not backword compatible). 
0.0211
  add output accessor. errors_to, invalid_keys_to, results_to.
0.0210
  bag fix : validator args is passed as empty array ref when args don't exists
0.0209
  add : syntax sugur
  add : invalid_keys accessors
0.0208
  delete : some accessors
0.0207 
  add : some accessors
0.0206
  change: options delete
  change: the way to get result is changed
  add   : add some test
0.0205
  change : Build.PL requires => { Object::Simple => 2.0018 }
  add : can pass option to constraint function
  add : results attribute
  add : can inheritable customize
  add : error_stock attribute
  add : correlation check

0.0204
  catch up Object::Simple update 2.0003
  change: errors methods dereference
  
0.0203
  rename add_validator to add_constraint
  rename validators to constraints
  rename $VALIDATORS to $CONSTRINTS
  catch up Object::Simple bag fix
  
0.0202
  bag fix: $validator is spliced
0.0201
  first release
0.01_01
  first develope release
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