This application was in extras-devel for a reason: it's not for everyone!
You shouldn't install apps from extras-devel if you don't know what you're doing or you don't know anything about linux.
This thread explains what this apps does. If you don't read it, then it's not my problem.
I never updated the app cause seems like nobody likes it.
Some people wants a password, but it can be done with a simple application. Password needs to be implemented in dbus, I think, cause this is the real application laucher.

PS: my english sucks, I know