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.
Add __toString() to abstract entity.
Merge branch 'to.string'
Conform whitespace to psr-2 see https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md
Add fieldMap config support to AbstractGateway and Abstract Entity. Remove EventManager and ServiceManager support from AbstractGateway.
Remove static keyword from abstract methods.
Add toArray support to AbstractEntity
Update Version in preparation for next tag.