Fix/background listen tag

[xquanluu]

Fix Feature server don't send customerData to api-server for record all call feature

[javibookline]

Hi @xquanluu have you been able to review the comment I added??

That the code in call-session.js

// Remove unneeded customer data to be sent to api server.
this.backgroundGatherTask.ignoreCustomerData = true;

should be

// Remove unneeded customer data to be sent to api server.
this.backgroundListenTask.ignoreCustomerData = true;

[xquanluu]

Thanks a lot @javibookline to point that out.
I have fixed the issue by your comment, now all testcases are passed.