First aproach for v0.5
Code refactored and some tests.
Some field tests and code.
Some form tests and improvments.
Merged FieldValidator and FieldValueValidator
Some tree first implementation.
Added form validation.
Added translation support.
Tests for validatining forms.
Added converting of values.
Added getters and setters.
Added get_tree method.
Added default for get_value.
Get Value Error
Tests for get_value_error.
InList validator.
Add converting back.
Added parse_dict.
Fixed get_data_dict.
Merge remote-tracking branch 'origin/master'