Global leaks

[jonnor]

Running a simple tests which creates two datachannels and sends between them shows:

Error: global leaks detected: Primus, RTCSessionDescription, RTCIceCandidate, isValid

ran using mocha.checkLeaks()

[DamonOehlman]

Thanks @jonnor I'll have a look into it. isValid in particular looks pretty suspect.

[DamonOehlman]

@jonnor This has been fixed in the 3.1.2 release. It might take a little while to propagate to the jsdelivr cdn though. Thanks again for reporting :)

Additionally, I'll wire up the zuul tests (using mocha) to use saucelabs in the next little while so we can get the heads up on these things in the future.