WrappedElements' toString returns the wrapped elements' toString
Merge pull request #30 from pietermartin/master

WrappedElements' toString returns the wrapped elements' toString
Starting section for developing language bindings.
unlabeld steps in a Traversal are simply named Graph.Key.hide(index)
Finish up section on writing drivers for gremlin server.
Merge remote-tracking branch 'origin/master'