Remove app/web/index.php

[georgringer]

It is just a suggestion but it would be cool if the file app/web/index.php would be removed from the repository as this file will be always changed by kind of every application.

Currently, I get a git change typechange: app/web/index.php.

Another option would be to add it to the .gitignore file.

[josefglatz]

I think this is something for boilerplate-newcomers. Of course, it's annoying to remove those.
I think this is always a task, which must be done in top of the boilerplate.

@georgringer what do you think about a make cleanwebroot task?

[josefglatz]

On top of that, /app/web must be removed from the .gitignore