Fluent-validation

Overload of ValidateAndThrow supports rulesets.
Separate PCL to support Universal Win10 apps

Fix issue with TestHelper not using correct overload.

Core - Fixed DelegateValidator causes a deadlock when running an async function synchronously.
Core - Fixed Equal/NotEqual not working with structs
Core - Additional overload of SetValidator that takes a validatorProvider
Core - Additional overloads for Length and Matches that take a func for accessing comparison properties
Core - ValidationContext.IsChildContext is now public
Core - Add support for non-integer indexers in child collections
Core - Added Empty and Null validators (opposite of NotEmpty and NotNull)
Core - Add ErrorCode property
Core - Add support for Dependent Rules
Async - Added support for cancellation tokens
Async - Add support for conditionals
Async - Allow model-level rules with ValidateAsync
Localization - added translations for Polish and simple Chinese
Localization - Fixed name of Czech resource file
MVC/WebApi - Allow ValidatorAttribute on method parameters
WebApi - Add support for AddToModelState

RegExValidator can now use a special {RegularExpression} placeholder in its error message.
Fix two crashes when using the PCL build
Fix issue with GetAssembly

Patch - Added properties to Error that can be used to build customized message.
Fixed issue where setting global resource provider isn't propogated to metadata, breaking client-side messages
in some situations.
Patch - allow spaces in credit card numbers
Added Support model level-rules with RuleFor(x => x)
Fixed issue with PropertyChain not handling nulls/empty strings properly
Added support for rule dependencies
Added ValidatorDescriptor.GetRulesByRuleset

Patch - Added optional RuleSet arguments to the validation test extensions.
Patch - Support MVC4/5 client-side validation for GreaterThanOrEqualToValidator
Patch - Support MVC4/5 client-side validation for LessThanOrEqualValidator
Patch - Remove duplication in Min/MaxFluentValidationPropertyValidator
Patch - Async validation for ChildCollectionValidatorAdaptor
Update nuget package for wpa81