Fix packlist

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fix type error.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fix type error.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Fix async manager tests.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Updated asset pack file format.

Signed-off-by: John McCutchan <john@johnmccutchan.com>