Implement set speaker by speaker number (1, 2, ..) in shell mode
character encoding fix for zone with non ascii
Merge into master
Fix too short variable name
Fixed no player_name pylint error
Disabled maybe-no-member pylint warning
Merge pull request #23 from KennethNielsen/list_names2

Speaker list with names
Catches SoCoUPnPException UPnP Error 711 'Illegal seek target from ip'.
Python 3 solution for exception chaining.