Bump Riak cookbook to v2.4.1 and Riak CS cookbook to v2.2.4.
Set Riak’s pb_backlog setting to the same as request_pool for Riak CS.
Set fold_objects_for_list_keys to true (requires Riak 1.4+).
Merge pull request #35 from basho/feature/riak-cs143

Bump Riak and Riak CS cookbooks (default to Riak CS 1.4.3).