Fix migration

Fix login with sessions

Step.Database/Controllers/MachinesUsersController.cs

@@ -31,6 +31,17 @@ namespace Step.Database.Controllers
                 .Include("Role") // TODO Add machine and user info?
                 .Where(x => x.MachineId == machineId && x.UserId == userId)
                 .FirstOrDefault();
+        }
+
+        public MachineUserModel FindById(int id)
+        {
+            return dbCtx
+                .MachinesUsers
+                .Include("Role")
+                .Include("Machine")
+                .Include("User")
+                .Where(x => x.MachineUserId == id)
+                .FirstOrDefault();
 
         }