Fix `createConnectionField` deprecation warnings#229

Merged

jnak merged 3 commits intographql-python:masterfrom

jnak:bug--warning

Jun 18, 2019

Commits on Jun 15, 2019

Fix deprecation warnings
jnak
committed

Commits on Jun 17, 2019

Add dummy test to please coveralls rule
jnak
committed

Commits on Jun 18, 2019

Add unrelated test to increase test coverage and unblock PR
jnak
committed