Fairly significant cleanup

- Rename application.TinmanApplication to application.Application
- Rename application.TinmanAttributes to application.Attributes
- Rename process.TinmanProcess to process.Process
- Rename controller.TinmanController to controller.Controller
- Change Application.tinman to Application.attributes
- Change the configuration for paths to be a little neater as a nested list
- Change the syntax for the __base_path__ macro to {{base}}
- Remove the package_name and __package_path__ macro
- Support UI modules better
- Clean up application.Attributes attar handling
- logger -> LOGGER where found
- Use constants when referring to configuration file directives
- Fix the redis session handling, moving it to blocking due to the non-async nature of the prepare() command
- Cleanup references to Application.tinman in application.handlers.redis, application.handlers.rabbitmq, application.handlers.session
- Add missing docstrings
- Fix broken session objects when non private variables for application, duration and configuration were overwritten when the session data was loaded
- Remove unused imports

setup.py

@@ -55,7 +55,8 @@
                       'MsgPack Sessions': 'msgpack',
                       'PostgreSQL': 'psycopg2',
                       'RabbitMQ': 'pika',
-                      'Redis': 'tornado-redis'},
+                      'Redis': 'tornado-redis',
+                      'Redis Sessions': 'redis'},
       test_suite='nose.collector',
       tests_require=test_requirements,
       data_files=[(key, data_files[key]) for key in data_files.keys()],