Treat hierarchy delimiter equivalent to hierarchy instead of escaping

It would be nice if the . character could work as a hierarchy introducer, in such a way that those files

[learningtask]
trains.lp = 5

[learningtask.trains]
lp = 7

could be queried with config.getList(String.class, "learningtask.trains.lp");

(note, at the moment you need to use the escaped form and will only get one or the other: "learningtask..trains.lp" or "learningtask.trains..lp"