Minor fixes to wrap up 5.0.0-RC.2.

Fixes

The following are fixes and patches since 5.0.0-RC.1:

ASP.NET Web API

• Handle model bound API version in route template (#671)

ASP.NET Web API with OData

• Fix lookup of EDM model (#675)

ASP.NET Core

• Handled unregistered IUrlHelperFactory (#673)
• Support API Version in LinkGenerator
• Remove check for dynamic endpoints (#678)

ASP.NET Core with OData

• Map OData-specific route name property (#670)
• Fix lookup of EDM model (#675)
• Support API Version in LinkGenerator