Factornado

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- Allow to override register url with host_url in the configuration file

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- Swagger is now in openapi 3.0.0

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- Create a `authentication` decorator to check authentication and roles for endpoints. Works fine with keycloak (5337753, 659dc3a)
- Create a `get_token` method to generate JWT token using SSO server (edca747)
- Default handlers need to be declare in the final service (e2164b3)
- WebMethod use URL rather URI (fb2c5ef)

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- Reorganize processes so that they are all child of main process (853d6e8)
- Create a `logger` submodule for simpler log configuration (fb2f20e)

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- handlers.RequestHandler has now methods to parse args and kwargs (3c28e0f)
- Todo and Do handlers push errors traceback to tasks server (5c49712)
- Close properly AsyncHTTPClient in Heartbeat.post (a98317c)

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- Proxy properly service error reason (5e50a20)
- Avoid multiple task assignment when multithreading tasks example (0d3fa50)