Merged new model sandbox. Tests aren't passing...
Merge commit.
Pipeline and ProtoRPC mixins are now lazy-loaded.
Bugfixes to tests, model adapter mixins are now lazy-loaded.
Removed global log statements from AppFactory platform, added full ProtoRPC mixins for `Key` and `Model`. `to_message_model` is exposed on `Model`-concrete children to convert the model class to a compatible ProtoRPC message class, `to_message` exists on `Key` and `Model`-descendants to convert to an instantiated message object.
First commit with a working Redis driver - operations are now coded for `put`, `get`, `allocate_ids` and `encode_key`. Things are working and tested with Redis. New driver allows configurable value compression and configurable identifier encoding.