Lusitanian/PHPoAuthLib — pull request #143 by cmodijk (2013-11-12 14:19:56+00:00)
Title: Wrong property path for yammer

Yammer return's a access_token with extra data like this and the lifetime is null so there is no lifetime.

```
Array
(
[access_token] => Array
(
[user_id] => 1503941481
[network_id] => 916484
[network_permalink] => jcid.nl
[network_name] => jcid.nl
[token] => 2p0SghNsOv3BKtAKVK0Q
[view_members] => 1
[view_groups] => 1
[view_messages] => 1
[view_subscriptions] => 1
[modify_subscriptions] => 1
[modify_messages] => 1
[view_tags] => 1
[created_at] => 2013/11/12 09:36:49 +0000
[authorized_at] => 2013/11/12 09:36:49 +0000
[expires_at] =>
)
}
```