remove 'ON AIR' from status line #6
Merge pull request #7 from yurtaev/6-ticket

remove 'ON AIR' from status line #6
MPD doesn't like so many reconnects we have introduced recenelt (/status calls). Changes open/release
for /status handler. Also removed print in /status
fixed /status regression
Update README.md
proper locking for managing concurent clients
.