Removed relationship between users and applications and got back to a compiling state.

Set up editing screens for group/node permissions.

src/Umbraco.Core/Models/Identity/BackOfficeIdentityUser.cs

@@ -34,6 +34,7 @@ namespace Umbraco.Core.Models.Identity
         public int StartContentId { get; set; }
         public int StartMediaId { get; set; }
         public string[] AllowedSections { get; set; }
+        public string[] Groups { get; set; }
         public string Culture { get; set; }
 
         public string UserTypeAlias { get; set; }

src/Umbraco.Core/Models/Identity/IdentityModelMappings.cs

@@ -24,12 +24,14 @@ namespace Umbraco.Core.Models.Identity
                 .ForMember(user => user.StartContentId, expression => expression.MapFrom(user => user.StartContentId))
                 .ForMember(user => user.UserTypeAlias, expression => expression.MapFrom(user => user.UserType.Alias))
                 .ForMember(user => user.AccessFailedCount, expression => expression.MapFrom(user => user.FailedPasswordAttempts))
+                .ForMember(user => user.Groups, expression => expression.MapFrom(user => user.Groups.Select(x => x.Name).ToArray()))
                 .ForMember(user => user.AllowedSections, expression => expression.MapFrom(user => user.AllowedSections.ToArray()));
 
             config.CreateMap<BackOfficeIdentityUser, UserData>()
                 .ConstructUsing((BackOfficeIdentityUser user) => new UserData(Guid.NewGuid().ToString("N"))) //this is the 'session id'
                 .ForMember(detail => detail.Id, opt => opt.MapFrom(user => user.Id))
                 .ForMember(detail => detail.AllowedApplications, opt => opt.MapFrom(user => user.AllowedSections))
+                .ForMember(detail => detail.Groups, opt => opt.MapFrom(user => user.Groups))
                 .ForMember(detail => detail.RealName, opt => opt.MapFrom(user => user.Name))
                 .ForMember(detail => detail.Roles, opt => opt.MapFrom(user => new[] { user.UserTypeAlias }))
                 .ForMember(detail => detail.StartContentNode, opt => opt.MapFrom(user => user.StartContentId))