Refactored Response object variable names to match Python.
Moving Timeout to instantiation as in Python. Adding timeout option to score call.
Added error checking for Path variable on instatiation of client.
Addressing Fred and Alex's PR comments.

* depreciated json, and original_request variables in Response.
* implemented is_ok? method in Response (to be in line with python).
* depreciated ok?.
* re-added timeout parameter to label and track methods of Client.

Signed-off-by: Yoav Schatzberg <yoav@siftscience.com>
Added Timeout parameter to score call.
Using Sift.warn instead of warn
Addressing Freds final comments on PR
* Changing is_ok? back to ok?
* Removing depreciation warnings
Merge pull request #22 from SiftScience/yoav_baseline_ruby_with_python

For Alex L - Baselining Ruby library with Python library