Improved "Add Entry" workflow (issue #156)

- New entry is automatically scrolled to and selected
- Title textfield is automatically focused
- Pre-generate a password using the deault password creation settings

MacPass/MPInspectorViewController.m

@@ -113,6 +113,9 @@ typedef NS_ENUM(NSUInteger, MPContentTab) {
                                            selector:@selector(_didChangeCurrentItem:)
                                                name:MPDocumentCurrentItemChangedNotification
                                              object:document];
+  
+  [self.entryViewController regsiterNotificationsForDocument:document];
+  
   [self.entryViewController setupBindings:document];
   [self.groupViewController setupBindings:document];
 }