Keep state between shutdowns

[astapa]

We want to be able to save settings and other things that were modified while the bot was running, so that when it boots back up, it returns to the same state as the one it was shut down in.

[jellopudding]

I'd like to note that the settings json file is currently opened with only read access. we could possibly open with "w+" or "r+" and do a Json.dump(ds, settings, etc) before closing the settings file.