Close [x] icon on every scene tab

Created by: kubecz3k

I think it would be more straightforward to have [x] icon on every tab. Currently when I need to close some tab I need to make 2 clicks, and further more when using 'open dominant script on scene change', I'm ending up with closed scene but opened script. Also when looking how other software deals with this, browsers have 'x' visible on default. Some text editors like Atom hide 'x' by default, but shows it on mouse hover. Don't know any other program that force me to open tab first when I want to close it. Know not every body will like this idea, that's why I opened the issue. What do you think?