v2.7.1

• added possibility of custom methods registration outside of the model scope,
• fix error during validation, thrown due to broken member names extraction (in MVC and WebAPI).

^{This product version contains following components:
ExpressiveAnnotations.dll v2.4.1, ExpressiveAnnotations.MvcUnobtrusive.dll v2.4.7, expressive.annotations.validate.js v2.6.6}