* Add a debian/salsa-ci.yml.

* database_exists: remove rewriting of database

for connection strings starting with 'postgres' the function
tested for the database with the name 'postgres' instead of the
database specified by the url.

This has been introduced here (the if else branch probably made
sense in dro and create, but it doesn't here in my opinion)

https://github.com/kvesteri/sqlalchemy-utils/commit/5d741c16662cde063e6930e7d3fe87b00ae9b8bb
https://github.com/kvesteri/sqlalchemy-utils/commit/d7f2905a39a02a2aa5b7b81640abe8cfd07e8771

* fix

Closes #455

https://docs.codecov.io/docs/python

* support drop_database

* support create_database

* add test case

* update env and update dep

* add warnings

* clean up __init__

* fix references to StringEncryptedType

* fixed the init call to StringEncryptedType

* Using String instead of LargeBinary for impl of EncryptedType

* Enable JSONB function

* adding jsonb_sql method

* Fixing tests

* Fixing flake8

Co-authored-by: Matthew Gladney <matthew.gladney@divvycloud.com>