Add test coverage plugin and settings.
Rename advanced_search_config and simple_search_config with leading/trailing "__".

Closes #2
Rename advanced/simple search in tests.

Refs #2
Rename assertEquals to assertEqual.
Add ModelMeta metaclass for ModelBase. Implement autogenerated tablename from class name (CamelCase to camel_case).
Forgot to add utils functions for tablename autogeneration.
Add mapper event support to ModelBase.

Working with class attribute `__events__` but not with our `event` decorator.

Refs #4
Merge branch 'master' of https://github.com/dgilland/alchy