Update README to reflect current state of master
Update README to reflect current state of master

Thank you for taking care of pymumble!
I just set up another few instances today to test around with more interface changes.
Due to this I noticed that there is now a small change to the installation procedure of the master branch :)
azlux/botamusique,azlux/botamusique,azlux/botamusique,azlux/botamusique