New webrtc-pc Editor's draft (v20150306)

Hi

A new dated version of the Editors' draft is available.

Dated version: http://w3c.github.io/webrtc-pc/archives/20150306/webrtc.html
Living document: http://w3c.github.io/webrtc-pc/

Changes include:


     * Properly define the negotiationneeded event, and its interactions 
with other API calls.
     * Add support for RTCRtpSender and RTCRtpReceiver.
     * Update misleading local/RemoteDescription attribute text.
     * Add RTCBundlePolicy.
     * All callback-based methods have been moved to a legacy section, 
and replaced by same-named overloads using Promises instead.
     * [PR #194] Added first version of Security Considerations (more 
work needed)

Please review and provide feedback.

Adam (for the editors)