Fix LogicalCallContext to be awailable on new Threads/Tasks/Threadpool items
Added Claims API
Added some Attributes to System.ComponentModel.DataAnnotation
added MembershipPasswordAttribute
added missing System.Web.Management classes
Added a lot of missing implementations required for MVC5
Fixed a lot of bugs in the async pipeline implementation
Implemented dynamic module loading support
Set the current context to null after finishing the work
Do not reuse a HttpApplication instance when a inner module has thrown an exception