Feature #49: Active Directory Managed Groups

Document Template Attachments, Device Batches, Device Profiles and User
Flags can be associated with an Active Directory group. This AD group is
then automatically synchronized with relevant User/Machine accounts.
Contains various other UI tweaks and configuration enhancements.

Disco.Models/Repository/Device/DeviceBatch.cs

@@ -44,6 +44,9 @@ namespace Disco.Models.Repository
         [DataType(DataType.MultilineText)]
         public string Comments { get; set; }
 
+        public string DevicesLinkedGroup { get; set; }
+        public string AssignedUsersLinkedGroup { get; set; }
+
         [ForeignKey("DefaultDeviceModelId")]
         public virtual DeviceModel DefaultDeviceModel { get; set; }