Enhanced KDB file handling

Locking now stores as KDB internally not just to disk
Logging when data loss occurs

MacPass/MPDocument.m

@@ -433,7 +433,7 @@ NSString *const MPDocumentGroupKey                            = @"MPDocumentGrou
   [self.undoManager removeAllActions];
   NSError *error;
   /* TODO let the tree chose the encryption */
-  self.encryptedData = [self.tree encryptWithKey:self.compositeKey format:KPKDatabaseFormatKdbx error:&error];
+  self.encryptedData = [self.tree encryptWithKey:self.compositeKey format:[MPDocument formatForFileType:self.fileType] error:&error];
   if(nil == self.encryptedData && error ) {
     [self presentError:error];
     return;
@@ -613,6 +613,12 @@ NSString *const MPDocumentGroupKey                            = @"MPDocumentGrou
     return nil; // no new Groups in trash
   }
   
+  if([self.fileType isEqualToString:MPKdbDocumentUTI]) {
+    if([self.tree minimumVersionForAddingEntryToGroup:parent].format == KPKDatabaseFormatKdbx) {
+      NSLog(@"Warning: Database format does not allow for adding entries to this group!");
+    }
+  }
+  
   KPKEntry *newEntry = [self.tree createEntry:parent];
   /* setting properties on entries is undoable, but we do not want to record this so disable on creation */
   BOOL wasUndoEnabeld = self.undoManager.isUndoRegistrationEnabled;

MacPass/MPIconSelectViewController.m

@@ -76,7 +76,6 @@ typedef NS_ENUM(NSInteger, MPIconDownloadStatus) {
 }
 
 - (IBAction)downloadIcon:(id)sender {
-  //self.downloadStatus = MPIconDownloadStatusProgress;
   KPKNode *node = self.representedObject;
   if(!node.asEntry) {
     return;