Remove and sort usings (just to annoy Brock)
Merge branch 'master' of https://github.com/thinktecture/Thinktecture.AuthorizationServer

Conflicts:
	source/WebHost/Areas/Admin/Api/CertificateController.cs
	source/WebHost/Areas/Admin/Api/Utility/ModelStateDictionaryExtensions.cs
	source/WebHost/Areas/Admin/Api/Utility/X509CertificateReferenceFormatter.cs
	source/WebHost/Areas/Admin/Api/X509KeysController.cs
	source/WebHost/Areas/Admin/Models/SymmetricKeyModel.cs
	source/WebHost/Areas/Admin/Models/X509KeyModel.cs
	source/WebHost/Areas/InitialConfiguration/Controllers/HomeController.cs
	source/WebHost/Areas/InitialConfiguration/InitialConfigurationFilter.cs
	source/WebHost/Areas/InitialConfiguration/Models/InitialConfigurationModel.cs
	source/WebHost/Areas/UserApplications/Api/UserApplicationsController.cs
	source/WebHost/Areas/UserApplications/Controllers/HomeController.cs
	source/WebHost/Areas/UserApplications/Models/UserApplicationsViewModel.cs