Auto add newlines

[TadeasKucera]

Autoformatting now forces new-lines -- the rule
rule name { meta: author = "Author" strings: $s1 = "str" condition: true }

will be autoformatted as follows:

rule name
{
        meta: 
                author = "Author"
        strings:
                $s1 = "str"
        condition:
                true
}

One-line rules are no more accepted.