Includes better handling for optional fields

v14.4.4

updated to reflect new subversion

Addition of composer autoload

v14.4.3

Updated to reflect new subversion for PSR-0 fix

Centralized Credentials, added composer support

Merge pull request #8 from anyarms/master

Added composer.json and adapted readme to reflect

Service version 14.4 release 1

v14.4.1

merged and added new doctype values