This is only technically a hardfork, in order to actually desync the chain
the witness account / committee account would need to pass a proposal to do
something in their capacity as the owner of an asset_object. It should be
fairly safe to say that this will not occur on testnet until witnesses have
upgraded.
- remove circular dependency with fee_schedule
- unitiy build db_* as database.cpp
- move protocol definitions in separate directory
- combined some objects/evaluators
- combined limit/call evaluator/objects into market_evaluator.*
