Version 0.3.0

Added

• Tests.
• Documentation.

Changed

• Graphbrain is now beta (main APIs considered stable).
• LevelDB edge attributes encoded in JSON.
• Renamed hypergraph() to hgraph() and moved function to jnit.
• Fixed notebook examples.
• Moved Hypergraph.lemma_degrees() to meaning.lemmas.
• Argroles location is normalized (first position in both predicates and builders).
• In the parsers package, create_parser() was moved to init and the factory module was removed.
• is_proper_concept() renamed to has_proper_concept() (meaning.concepts module)
• find_concept() renamed to strip_concept() (meaning.concepts module)

Removed

• graphbrain.funs module.