Added user_data option to SecurityKey
Added check on user_data length
Moved the user_data check to initialize and fixed it's syntax.
Added the tokenator.  Site Token parsing still needs to be tested, and the tests in general could be more robust.  Also haven't tested user_data or versioning so that needs work still.
Merged build fixes from master
Site Token deconstruction looks good
A few final tweaks.  Email address now stored in the same format as card and member
Added versioning.
Small re-arrangement of methods and added a new spec.
100%
Added documentation for passing user_data. #EG-1709 Fixed
Made requested changes.
More configurable key options for internal test applications
Allow atpay private key and atpay public key to override environment.
Added accessor for partner_id
Merge pull request #1 from atpay/user-data

Added user_data option to SecurityKey