roadly/yammer — pull request #3 by ybenjo (2012-03-31 09:18:18+00:00)
Title: Yammer APIs sometimes returns empty string(invalid json).

In some APIs return empty string(invalid json).
For example,
`Yammer.find_by_id(-99999)` raises
`A JSON text must at least contain two octets! (MultiJson::DecodeError)`.
Another example, create groups which uses Groups API returns empty strings nevertheless creating was success.
So my fork uses `rescue MultiJson::DecodeError` and return empty `Hashie::Mash` object in ./yammer/lib/request.rb.