Django-postgres-extra

What's Changed
* Document POSTGRES_EXTRA_ANNOTATE_SQL by Photonios in https://github.com/SectorLabs/django-postgres-extra/commit/4adc787acb7c392c38bb0a7b81f47195f727f194
* Rename PSQLEXTRA_ANNOTATE_SQL to POSTGRES_EXTRA_ANNOTATE_SQL by Photonios in https://github.com/SectorLabs/django-postgres-extra/commit/77dad7e09f33bb10f695efe82e5137f5520f732f

**Full Changelog**: https://github.com/SectorLabs/django-postgres-extra/compare/v2.0.6...v2.0.7rc1

What's Changed
* Append the caller data to each SQL query by sewi-cpan in https://github.com/SectorLabs/django-postgres-extra/pull/174
* Minor doc tweak by meeb in https://github.com/SectorLabs/django-postgres-extra/pull/175
* Support both psqlextra and PostGis backends at the same time by sewi-cpan in https://github.com/SectorLabs/django-postgres-extra/pull/179
* Gracefully handle the primary key already being included in the partioning key by quertenmont in https://github.com/SectorLabs/django-postgres-extra/commit/99b2c3202b593f071adc7895c938c50316af76fe

New Contributors
* sewi-cpan made their first contribution in https://github.com/SectorLabs/django-postgres-extra/pull/174
* meeb made their first contribution in https://github.com/SectorLabs/django-postgres-extra/pull/175
* quertenmont made their first contribution in https://github.com/SectorLabs/django-postgres-extra/commit/99b2c3202b593f071adc7895c938c50316af76fe

**Full Changelog**: https://github.com/SectorLabs/django-postgres-extra/compare/v2.0.5...v2.0.6