Make jellyfishes_by_beach do actual requests to medjelly API, returning jellyfishes hazard list
Ignore local_settings file and add local settings template
Refactor app, settings and jellyfishes info to integrate medjelly API
Refactor api.py so auth token is only calculated once, just when module is loaded.
Use right jellyfish identificator key when generating jellyfish info.
Fix local settings importing in settings module. Clean settings module of uneeded code.
Add device id.