added UI for kdb support

fixed issue with not keeping "meta stream entries" (database color, default username) and num encryption rounds
fixed issues with recycle bin (wasn't updating group list correctly, couldn't access newly created recycle bin group)

src/Kp2aBusinessLogic/database/edit/DeleteEntry.cs

@@ -36,7 +36,7 @@ namespace keepass2android
 		{
 			get
 			{
-				return CanRecycleGroup(_entry.ParentGroup);
+				return App.GetDb().DatabaseFormat.CanRecycle && CanRecycleGroup(_entry.ParentGroup);
 			}
 		}
 
@@ -62,7 +62,8 @@ namespace keepass2android
 			if(pgParent != null)
 			{
 				pgParent.Entries.Remove(pe);
-				
+				//TODO check if RecycleBin is deleted
+				//TODO no recycle bin in KDB
 
 				if ((DeletePermanently) || (!CanRecycle))
 				{
@@ -85,7 +86,7 @@ namespace keepass2android
 				}
 				else // Recycle
 				{
-					EnsureRecycleBin(ref pgRecycleBin, ref bUpdateGroupList);
+					EnsureRecycleBinExists(ref pgRecycleBin, ref bUpdateGroupList);
 					
 					pgRecycleBin.AddEntry(pe, true, true);
 					pe.Touch(false);
@@ -97,6 +98,9 @@ namespace keepass2android
 							Db.Dirty.Add(pgParent);
 							// Mark new parent dirty
 							Db.Dirty.Add(pgRecycleBin);
+							// mark root dirty if recycle bin was created
+							if (bUpdateGroupList)
+								Db.Dirty.Add(Db.Root);
 						} else {
 							// Let's not bother recovering from a failure to save a deleted entry.  It is too much work.
 							App.LockDatabase(false);

src/Kp2aBusinessLogic/database/edit/DeleteGroup.cs

@@ -56,7 +56,7 @@ namespace keepass2android
 		{
 			get
 			{
-				return CanRecycleGroup(_group);
+				return App.GetDb().DatabaseFormat.CanRecycle && CanRecycleGroup(_group);
 			}
 		}
 
@@ -91,8 +91,8 @@ namespace keepass2android
 			}
 			else // Recycle
 			{
-				bool bDummy = false;
-				EnsureRecycleBin(ref pgRecycleBin, ref bDummy);
+				bool groupListUpdateRequired = false;
+				EnsureRecycleBinExists(ref pgRecycleBin, ref groupListUpdateRequired);
 				
 				pgRecycleBin.AddGroup(pg, true, true);
 				pg.Touch(false);
@@ -106,6 +106,10 @@ namespace keepass2android
 						}
 						//Mark old parent dirty:
 						Db.Dirty.Add(pgParent);
+
+						// mark root dirty if recycle bin was created
+						if (groupListUpdateRequired)
+							Db.Dirty.Add(Db.Root);
 					} else {
 						// Let's not bother recovering from a failure to save a deleted group.  It is too much work.
 						App.LockDatabase(false);

src/Kp2aBusinessLogic/database/edit/DeleteRunnable.cs

@@ -66,7 +66,7 @@ namespace keepass2android
 		}
 
 		
-		protected void EnsureRecycleBin(ref PwGroup pgRecycleBin,
+		protected void EnsureRecycleBinExists(ref PwGroup pgRecycleBin,
 		                                    ref bool bGroupListUpdateRequired)
 		{
 			if ((Db == null) || (Db.KpDatabase == null)) { return; }
@@ -87,7 +87,7 @@ namespace keepass2android
 						};
 
 				Db.KpDatabase.RootGroup.AddGroup(pgRecycleBin, true);
-				
+				Db.Groups[pgRecycleBin.Uuid] = pgRecycleBin;
 				Db.KpDatabase.RecycleBinUuid = pgRecycleBin.Uuid;
 				
 				bGroupListUpdateRequired = true;