Yii Validator 2.1

[Yii Validator]2.1(https://github.com/yiisoft/validator)版本包发布了。以下是新版本中包含的更改列表：

• merge rules from PHP attributes with rules provided via getRules() method;
• use Yiisoft\NetworkUtilities\IpRanges in Ip rule: add getIpRanges() method and deprecate getRanges() , getNetworks() , isAllowed() methods;
• use NEGATION_CHARACTER constant from network-utilities package in IpHandler instead of declaring its own constant.