[GitHub issue #149] [By Maarten Balliauw] Only append parameter when it was provided in the first place
[GitHub issue #192] [By Soumyarupa De] Fix a global lock issue in RequestUriProcessor
[GitHub issue #257] To support reading & writing undeclared properties in complex/entity type, OData client for .NET adds a new enum UndeclaredPropertyBehavior, and ODataLib addes ODataUndeclaredPropertyBehaviorKinds.SupportUndeclaredValueProperty.
[GitHub issue #243] Fix a high CPU usage issue caused by CsdlSemanticsModel class