Steps not properly mentioned. What to do with Server.php file 
I'm getting an empty response in the server.php file present in root directory of the app.
Nowhere is it mentioned that what we should do with that file. The line 30 just says:

CURLOPT_URL => "https://global.xirsys.net/_turn/YOUR-CHANNEL-NAME",//Replace 'YOUR-CHANNEL-NAME' with the name of your xirsys channel

Where do I get this channel name? And why isn't this important step mentioned explicitly in the Readme?
