reworked sdk
Updates smartystreets sdk

+ Downgrades guzzle http client to 3.8.1 (php 5.3)
+ Updates unit and functionaltest
+ Updates Address class to have protected members vars
Merge branch 'develop' into 74338618_update_smartystreets_sdk

Conflicts:
	src/SmartyStreetsClient.php
Merge pull request #4 from deseretdigital/74338618_update_smartystreets_sdk

Updates smartystreets sdk