Stubs request #ssl?
Fixes image url test

On Ruby 1.8.7 the order of hash key-value pairs is
not guaranteed.
Merge pull request #105 from vesan/stub-ssl

Stubs request #ssl?
Merge pull request #106 from vesan/fixes-image-url-test

Fixes image url test
Adds `info_fields` option

Facebook exposes a `fields` parameter for the `/me` endpoint that
allows the client to return additional information about the
authenticated user. This commit adds an `info_fields` option that
maps directly to that parameter, when specified.