v2.0.0

Added

• A possibility to more precisely specify the list of fields for a rule.

Changed

• Changed the way how to configure the validator
• Validation state is not saved in Validator object anymore
• isValid method renamed to validate, which always return errors array
• Vendor renamed to fresh-advance
• Improved readme with installation instructions and new way to configure
• All rule constructors now takes more strict and intuitive parameters