long path name in configuration file is missing

Hi, I would like to have a new feature.

example OLD:
```
a = {
 b = {
   c = 1;
 }
}
```

example NEW:
```
a.b.c = 1;
```

For NEW the "**a**" and "**b**" is a "*group*" and only the "**c**" is a scalar

thanks.
