Review Alexandru 2008-05-08
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[X] Regarding #10765 (new MappingValidator for yes/no dialogs) - It is not
    documented or mentioned in the tutorial.

[X] Why is $this->properties['map'] = array(); in the constructor? $this-map
    is assigned on the following line anyway.

[X] The @property tag for ezcConsoleDialogQuestionMappingValidator contain a wrong
    description for $conversion - TYPE_* instead of CONVERT_* constants. Same for
    other validator classes.