Brough back id=unique to the model to make sequelize v5 work again

v1.3.19

Brough back id=unique to the model to make sequelize v5 work again

Revert sequelize update to v6 changes

revert "fix(deps): update dependency sequelize to v6 [security]"

This reverts commit c625e5dad7a1ad81b0d17d8b80cc6e00fd560a34.

use snake_case instead of camelCase with updateOnDuplicate

v1.3.17

More debug logging

Increase debug logging

v1.3.16

More debug logging

Remove erroneous unique: true, debug logging

v1.3.15

Remove misleading unique: true from studyrights model, add debug cons…

Fix incorrect promise handling caused by Sequelize major update

v1.3.14

Avoid chaining filter/map directly to sequelize model to bugs caused …

Fix `/grapa/studytracks` API, add `code` field to the response body

v1.3.13

Fix lint issue

add endpoint GET grapa/studytracks/:code

v1.3.12

fix formatting

Security dependency updates

v1.3.11

Merge pull request #233 from UniversityOfHelsinkiCS/renovate/npm-expr…

Add /persons endpoint for the new Grapa service

v1.3.10

Fix lint errors