PD-13 Fix call to sqlalchemy 'has_table' (#35)

PPS-2007 PPS-2012 Loosen sqlalchemy dependency (#34)

Merge pull request #31 from uc-cdis/chore/update-gen3datamodel

Chore/update gen3datamodel

Merge pull request #16 from uc-cdis/chore/py3

chore(py3): upgrade to python3

Merge pull request #15 from uc-cdis/fix/migration

fix(migration): migration order

bump psqlgraph, sqlalchemy (#14)

* bump psqlgraph, sqlalchemy

* get psqlgraph from github in setup.py

* bump psqlgraph to 2.0.2

* rm psqlgraph from Pipfile

Merge pull request #10 from uc-cdis/fix/missing-index

PXD-3012: add migration for missing indexes

Release Notes

For: uc-cdis/datamodelutils
Notes since tag: 0.4.3
Notes to tag/commit: 0.4.4
Generated: 2019-04-24

Dependency Updates
  - gdcdictionary latest version (#9)

Merge pull request #8 from uc-cdis/chore/pypi

Auto release notes and PyPI Release

Merge pull request #7 from uc-cdis/fix/migration

fix/migration: fix entity_id column to be nullable