Tool to establish a loopback call via apprtc turn server.

For now the test keeps track of video bandwidth estimation and plots it
using google visualization libraries after the test is concluded.
There is also scripts to run a test and record the tcpdump.

BUG=3037
R=hta@webrtc.org, phoglund@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/9729004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5707 4adac7df-926f-26a2-2b94-8c16560cd09d
8 files changed