- fix Turn socket crashes upon turn server closing
https://github.com/openpeer/op/issues/19
Merge branch 'master' of https://github.com/openpeer/ortc-lib

# By Vladimir Morosev (5) and others
# Via Vladimir Morosev (2) and Robin Raymond (1)
* 'master' of https://github.com/openpeer/ortc-lib:
  Added workspace to readme
  no message
  no message
  more formatting
  formatting
  Initial build instructions for Lib
  - derived classes for MediaStream, MediaStreamTrack, added MediaTransport component
  - added webrtc media engine class
  - added MediaManager, MediaStream and MediaStreamTrack classes - support for getUserMedia()
  - instantiation of classes, ORTC structures modified
  - added protected class fields to internal classes