Don't change embedded newlines into \n

[aboyton]

Related to #29 (although the opposite), I think it would be nice if we also didn't change embedded newlines into inline \ns.

$query =
    'SELECT *
     FROM users
     WHERE u.id IS NULL';

becomes

$query = 'SELECT *\n     FROM users\n     WHERE u.id IS NULL';

[mgrip]

@evilebottnawi not sure how we want to address this - node.value in the parser doesn't seem to have any differentiation between

$test = "test\nstring";

and

$test = "test
string";

[mgrip]

maybe we can utilize the new node.raw attribute somehow?

[aboyton]

Depending how high priority this is I can try take a look next week.