try to implement labeln build queries, quite messy
fixed detecting objects in response.data and implementing labels from result
detect columns of streaming result, tested for not causing side effects
restored graph.stream processing
delete x-stream header after sended
implements #16 sorting labels and attaching to streaming result
implements #16 speeding up queries by getting labels via cypher query result instead of loading
instaniate nodes with labels correctly
renamed internal used hooks to `node._on$Action`, all public overridable hooks are now named `node.on$ACTION`
fixed async jobs counting, tests following
iteration with sync and async
fixed findById and loading behaviour
processing of objects fixed, todo fix stream processing