Only allow `development` environment to override the database with `VELUM_DB_ENV`.
Only allow `development` environment to override the database with `VELUM_DB_ENV`.

Test and production database names are fixed.

MaximilianMeister/velum,MaximilianMeister/velum,vitoravelino/velum,kubic-project/velum,vitoravelino/velum,vitoravelino/velum,kubic-project/velum,kubic-project/velum,MaximilianMeister/velum,ereslibre/velum,kubic-project/velum,ereslibre/velum,MaximilianMeister/velum,ereslibre/velum,vitoravelino/velum,ereslibre/velum