Check riak_api for http connection info.

Required for basho/riak#361.
Update tests to use connection_info for HTTP host/port pairs.
Cleanup whitespace.
Put the https setting in core for backwards-compatibility.
Modernize verify_counter_converge to use the rt helpers for a client.
Merge pull request #375 from basho/feature/sdc-wm-move

Check riak_api for http connection info.