Windows: Fix hanging issue during cleanup
Appveyor is failing after running the tests, this is certainly due to the changes over there: https://github.com/aisouard/node-webrtc/commit/eb9ea40095bff95f7e5061d02f668c5767eaddb8
It's hanging again under OSX... https://travis-ci.org/aisouard/node-webrtc/jobs/216071123
It comes from that line, https://github.com/aisouard/node-webrtc/blob/develop/src/globals.cc#L65
The current thread is set as the signaling one, but the signaling thread is used as the worker thread, I should pay more attention.
Testing under Windows before pushing again.
The issue is way more complicated, it seems that Node is not really happy with ref counted objects. Will be fixed tonight.
Travis got stuck on that one, but it seems fixed. Will reopen if it happens again.