Redirbot

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* requires twisted >= 11.1.0, since there is heartbeat support

* introduced -V argument

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* PyPi packaging

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* Config format for main.channels changed from ", " separated to just space
separated

* No more XDG, path to config is specified by -c argument

* Redirbot does not start without any arguments or with -h|--help anymore

* some log messages have changed

* Using ReconnectingClientFactory