0.15.0

Fixed Bugs

• #59 Nodes are not deleted from graph storages via the "applyUpdate" API
• #55 Subgraph query does not work if there is no coverage component.
• #54 Check all existing matches when checking reflexivity

Enhancements

• #58 Implement ^ (near) operator
• #57 Implement ":arity" (number of outgoing edges) unary operator
• #52 Use CSV files for query set definition