Latest commit 4072a6f Aug 16, 2016 @grokys grokys committed with ryangribble Fix issue #1446: Organization can fail deserialization when user is n…
…ot an org owner.: (#1448)

* Added failing unit test for #1446.

* Make certain Account properties nullable.

Make Collaborators, DiskUsage and PrivateGists properties nullable as
they may be returned as null when fetching an organization of which the
user is a member by not an owner. Fixes #1446.