ImageDao now returns Photo objects where appropriate
Adds fromArray(), creates test for Photo
Updates service to honor updated interface
Updates ImageService to work with Photo objects
Updates test
Updates dependencies.
Updates adapter to use User object
Updates SlimContainer to properly set config and Twig Env config
Adds User object
Adds and updates Photo and Size related code
Updates container to use Photo object
Updates to make use of Photo model
Updates templates to conform with Twig's strict variables
Implements object updates