Rename Authentication\Adapter\Auth class as Authentication\Adapter\SimpleFM
Add new Authentication\Storage\Session class
Housekeeping comments in custom exception classes.
Merge pull request #16 from jeremiahsmall/session_storage

Session storage
Hotfix. Remove unused loginUrl property. Fix namespace typo in Adapter\Exception classes. Housekeeping on formatting for all Exception classes.
Hotfix bug in AbstractGateway findBy method.
Hotfix. Update Version class.