[ 4.1.a ] As a user, I want to use an external database, so I can read and write cheeps to and from other devices

[AugustBugge]

Further information: Use as database.

Acceptance Criteria:

• [x] Be able to send JSON objects to the database and save them there.
• [x] Use HTTP to get cheeps from database to print.
• [x] Rewrite tests for database
• [x] Make sure all tests pass