Issue51 magnus editorial: closes #51

I am a bit hesitant to make this a normative dependency based on it's current status.
WebRTC 1.0 is going to block on JSEP and if JSEP block on trickle ICE, I worry that won't be done for over a year. Lets talk about this one and see if we can make a way for JSEP not to normatively depend on it but still reference it in a way that gets what is needed. I don't think the WG has decided trickle is MTI thought I get that is slightly different than normative.