[webrtc-stats] Pull Request: Issue 97 redux

vr000m has just submitted a new pull request for https://github.com/w3c/webrtc-stats:

== Issue 97 redux ==
corresponds to issues reported in #86, #97, and #112. related to outgoing and incoming bitrate estimates on a candidate pair.

Tries to undo the git rebase hassle in #170.

See https://github.com/w3c/webrtc-stats/pull/182