10) √ NEW: deleteLabelFromNode: Removing a label from a node.
11) √ NEW: readNodesWithLabel: Get all nodes with a label.
12) √ NEW: readNodesWithLabelAndProperties: Get nodes by label and property
	(property: JSON with one property, only one property currently supported by Neo4j)

	PROBLEM: insert new node with number, can be also an array of values of the same type
	http://docs.neo4j.org/chunked/2.0.0-M05/rest-api-property-values.html