Add new filter options for two endpoints for locks

/locks/date/2020 to get all locks for a specific year.
/lock/users/user_id/2020 to get all locsk for a user for a specific year.

Update python to 3.8

Merge pull request #28 from codelabsab/update_python

Update python to 3.8

Fix logging

Fixes #10

Fix environment variables for dynamo table names

0.6.1

Fix env variables for dynamo tables

Cleanup unused code

Remove unused lock code

We decided that locking is going to be handled by the client.

I.e, the client will implement the logic for locking, and using the existing
API is suffice for now

Implement lock attribute

Merge pull request #14 from codelabsab/add-new-endpoints-for-locking

[WIP] - Add lock item set as BooleanAttribute False by default

Refactor delete API handling

0.4.0

Remove unused code in app.py

Refactor /event endpoint

Clients should now use /even/users/userid POST to create events instead of POSTing to /event

Change endpoints

Remove old unused /user/user_id endpoint.
Add new /event/users endpoint.
Rename /event/user/userid to /event/users/userid

Refactor get_id

Refactor the get_id function and add new endpoint /event/user/{user_id}