v4.0.0

Changelog (v3.3.0...v4.0.0)

• changed EnumInterface::getChoices method return logic (flipped values and labels)
• added EnumInterface::getValues method : must return all possible values for enum
• added EnumInterface::getLabel method : must return a label for an enum value
• removed AbstractTranslatedEnum class : use TranslatedEnum instead
• removed ConfigurableTranslatedEnum class : use TranslatedEnum instead
• added Enum class : extends this base class for easy implementation
• removed CannotExtractConstantsException class : use LogicException instead
• removed InvalidTranslatePatternException class : use LogicException instead
• removed InvalidEnumException class : use InvalidArgumentException instead
• removed DuplicatedEnumException class : use LogicException instead
• removed InvalidEnumValueException class : use InvalidArgumentException instead
• removed enum_label twig function : use enum_label twig filter instead
• added enum_values twig function : fetch possible enum values
• changed enum base classes constructor arguments order
• added integration with myclabs/php-enum : see doc
• added documentation about upgrading from standard symfony : see doc

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Please read upgrade note : UPGRADE-4.x.md