Creating home/away produce schedule where one team has much more matches on first half

[sandrozdravkovic]

I'm using
Generate a random home-away schedule where each player meets every other player twice, once at home and once away, using the $rounds integer parameter:

$teams = ['The 1st', '2 Good', 'We 3', '4ward'];
$rounds = (($count = count($teams)) % 2 === 0 ? $count - 1 : $count) * 2;
$schedule = schedule($teams, $rounds);

Lets create schedule for 12 teams and if we have season split up on 2 half's ( 11 rounds on first half, and 11 rounds on second half). One team on first half should have 5 or 6 matches where it plays at home, but it happens that one team has 7 matches on first half and 4 matches on second half.
Could you please take a look and possibly try to fix this

[mnito]

The home-away algorithm used in this library is a simple heuristic algorithm that can produce unbalanced home-away schedules. While I personally do not plan on expanding upon the current algorithm or replacing it with a new algorithm, I am open to discussion of potential alternate solutions or to contributions that create more balanced home-away schedules.

[robsontenorio]

@mnito are you accepting a PR for generate full home-away ballanced schedule?