Convert dense arrays to list instead of dict

[nick]

var arr:Array = ['version',6];
socket.writeObject(arr);
socket.flush();

Output:

{0:'version',1:6}

but better would be:

['version',6]

[nick]

Branching to source:pyamf/branches/dense-array-340

[thijs]

Could you supply a full test script that reproduces this problem, that we can use to verify the fix for this problem?