May 2019 release with convenience functions and other enhancements.
Changes
-------
Consistent metanode/metaedge/metapath .abbrev property
https://github.com/hetio/hetio/pull/27
permute_pair_list: default to inplace=False
https://github.com/hetio/hetio/issues/28
Add construct_pdp_query to build cypher queries for PDP
https://github.com/hetio/hetio/pull/30
https://github.com/hetio/hetio/pull/33
https://github.com/hetio/hetio/pull/34
https://github.com/hetio/hetio/pull/36
Improve imports to be lazy / less likely to throw errors
https://github.com/hetio/hetio/issues/31
https://github.com/hetio/hetio/pull/32
https://github.com/hetio/hetio/pull/35
Migrate neo4j nomenclature to hetnet module
https://github.com/hetio/hetio/pull/37
is_symmetric method for metapaths
https://github.com/hetio/hetio/issues/38
https://github.com/hetio/hetio/pull/39